Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
  • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
  • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
  • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
  • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
  • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
  • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
  • B60G17/08—Characteristics of fluid dampers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/32—Details
  • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
  • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
  • F16F9/461—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall characterised by actuation means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16J—PISTONS; CYLINDERS; SEALINGS
  • F16J15/00—Sealings
  • F16J15/16—Sealings between relatively-moving surfaces
  • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
  • F16J15/3464—Mounting of the seal
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
  • F16K1/32—Details
  • F16K1/34—Cutting-off parts, e.g. valve members, seats
  • F16K1/46—Attachment of sealing rings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/02—Construction of housing; Use of materials therefor of lift valves
  • F16K27/029—Electromagnetically actuated valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
  • F16K27/048—Electromagnetically actuated valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
  • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F7/00—Magnets
  • H01F7/06—Electromagnets; Actuators including electromagnets
  • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
  • H01F7/128—Encapsulating, encasing or sealing
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F7/00—Magnets
  • H01F7/06—Electromagnets; Actuators including electromagnets
  • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
  • H01F7/16—Rectilinearly-movable armatures
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
  • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
  • B60G2202/30—Spring/Damper and/or actuator Units
  • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
  • B60G2202/312—The spring being a wound spring
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2500/00—Indexing codes relating to the regulated action or device
  • B60G2500/10—Damping action or damper
  • B60G2500/11—Damping valves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60G—VEHICLE SUSPENSION ARRANGEMENTS
  • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
  • B60G2600/22—Magnetic elements
  • B60G2600/26—Electromagnets; Solenoids

Definitions

• the present invention relates to a solenoid, a solenoid valve, and a suspension device.
• the solenoid described in Patent Document 1 includes a housing that has an upper end opening and accommodates a solenoid main body having a coil wound around a bobbin from the upper end opening, and a molded resin that covers the solenoid main body. a primary exterior body that is attached to the upper end opening of the housing and forms a gap between the housing and the upper end opening; and a secondary exterior body made of molded resin that covers the primary exterior body so as to close the gap. Equipped with a body.
• Patent Document 2 describes the use of a solenoid as a component for generating damping force in a shock absorber mounted on a vehicle.
• Patent No. 6852051 Japanese Patent Application Publication No. 2014-199076
• the solenoid described in Patent Document 1 has room for further improvement in terms of suppressing the intrusion of muddy water into the housing and the leakage of oil within the housing.
• An object of the present invention is to provide a solenoid that can improve the reliability of the sealing structure within the housing.
• the present invention which was completed with such an object, includes a solenoid main body having a coil, a surrounding part that covers the periphery of the coil with a molded resin, a housing into which the surrounding part is inserted, the solenoid main body and the a seal body for sealing a gap between the solenoid body and the housing, the solenoid body having a first intersecting surface in a direction intersecting with the direction in which the peripheral portion is inserted into the housing;
• the seal body has a second intersecting surface in a direction crossing the insertion direction, and the seal body seals the gap by contacting the first intersecting surface and the second intersecting surface, and the seal body seals the gap by contacting the first intersecting surface and the second intersecting surface.
• one of the second intersecting surfaces is a solenoid that is inclined with respect to the insertion direction.
• FIG. 1 is a diagram showing an example of a schematic configuration of a suspension device according to a first embodiment.
• FIG. 2 is a diagram showing an example of a schematic configuration of a solenoid according to the first embodiment.
• FIG. 3 is a diagram showing an example of a cross section taken along line III-III in FIG. 2;
• FIG. 7 is a diagram illustrating an example of a schematic configuration of a solenoid according to a second embodiment. It is a figure which shows an example of the modification of the outer housing based on 2nd Embodiment.
• FIG. 7 is a diagram showing an example of a schematic configuration of a solenoid according to a third embodiment. It is a figure showing an example of a schematic structure of the solenoid concerning a 4th embodiment.
• FIG. 1 is a diagram showing an example of a schematic configuration of a suspension system 100 according to the first embodiment.
• the suspension system 100 is a strut type suspension, and includes a hydraulic shock absorber 102 and a coil spring 103 disposed outside the hydraulic shock absorber 102, as shown in FIG.
• the suspension device 100 includes a lower spring seat 104 that supports one axial end (lower side in FIG. 1) of a rod 120, which will be described later, in the coil spring 103;
• An upper spring seat 105 that supports the end on the other side (upper side in FIG. 1) in the direction is provided.
• the suspension system 100 includes a vehicle body side bracket 106 attached to the other end of the rod 120 in the axial direction to attach the suspension system 100 to the vehicle, and one end of the rod 120 in the axial direction in a cylinder section 110 to be described later.
• a wheel-side bracket 107 is fixed to a side end and is used to attach the suspension device 100 to a wheel.
• the suspension device 100 includes a dust cover 108 that covers at least a portion of the cylinder portion 110 and the rod 120.
• the vehicle body side bracket 106 is attached to the other end of the rod 120 in the axial direction.
• the hydraulic shock absorber 102 includes a cylinder section 110 that accommodates oil as an example of a working fluid, and one end that protrudes from the cylinder section 110 and the other end that is slidable into the cylinder section 110. and a rod 120 to be inserted. Further, the hydraulic shock absorber 102 includes a piston portion 130 provided at one end of the rod 120 and a bottom portion 140 provided at one end of the cylinder portion 110. Furthermore, the hydraulic shock absorber 102 includes an outer damping section 150 that is provided outside the cylinder section 110 and generates a damping force.
• the cylinder portion 110 includes a cylinder 111 that accommodates oil, an outer cylinder 112 provided outside the cylinder 111, and a damper case 113 provided outside the outer cylinder 112.
• the cylinder part 110 also includes a rod guide part 114 that movably supports the rod 120, a bump stopper cap 115 attached to one end of the damper case 113, and a bump stopper cap 115 that prevents oil leakage in the damper case 113 and prevents the damper from leaking.
• An oil seal 116 is provided to prevent foreign matter from entering the case 113.
• FIG. 2 is a diagram showing an example of a schematic configuration of the solenoid 1 according to the first embodiment.
• FIG. 3 is a diagram showing an example of a cross section taken along line III-III in FIG.
• the outer damping section 150 includes a damping force mechanism section 160 that generates a damping force, and a solenoid 1 that adjusts the damping force of the damping force mechanism section 160.
• the damping force mechanism section 160 includes an orifice plate 161 in which a flow path is formed, and a pilot valve 162 that opens and closes the flow path of the orifice plate 161.
• the damping force mechanism section 160 also includes a compression coil spring 163 that applies a force to the pilot valve 162 in the direction of closing the flow path of the orifice plate 161, and a support member 164 that slidably supports the plunger 11, which will be described later. have.
• the structure of the damping force mechanism section 160 is not particularly limited, and may have any structure. Therefore, in FIG. 2, other parts constituting the damping force mechanism section 160 are omitted.
• the solenoid 1 includes a valve part 10 that opens and closes a flow path, a solenoid part 20 that drives a plunger 11 (described later) of the valve part 10, and a housing 60 that accommodates a coil 31 (described later) of the valve part 10 and the solenoid part 20. , an annular elastic sealing body 90 that seals a gap between the solenoid section 20 and the housing 60.
• the axial direction of the plunger 11 may be referred to as the "axial direction”.
• the axial direction is also the centerline direction of the cylindrical housing 60.
• the lower side and the upper side in FIG. 2 may be referred to as a "first side” and a “second side,” respectively.
• a direction intersecting the axial direction is referred to as a "radial direction.”
• the centerline side of the housing 60 may be referred to as the "inside”
• the side away from the centerline may be referred to as the "outside”.
• the valve portion 10 includes a plunger 11 that holds an adjustment valve 170 that controls the flow of oil in an orifice plate 161 in which a flow path is formed, and a magnetic body 12 such as a magnet fixed to the plunger 11.
• the adjustment valve 170 is provided at a position facing the pilot valve 162 in the axial direction. Further, the adjustment valve 170 is movable in the axial direction, and can come into contact with the pilot valve 162 by moving toward the first side. In this way, the regulating valve 170 can take any state between a state in which it is in contact with the pilot valve 162 and a state in which it is farthest from the pilot valve 162. This allows the adjustment valve 170 to adjust the flow rate of oil flowing through the flow path in the orifice plate 161. Therefore, the adjustment valve 170 has its position adjusted by the solenoid 1, and functions as an example of a valve that adjusts the force with which oil opens and closes the flow path. Note that the adjustment valve 170 and the solenoid 1 constitute a solenoid valve 180.
• the plunger 11 is a rod-shaped member formed along the axial direction.
• the plunger 11 holds the regulating valve 170 on the first side, and also holds the magnetic body 12 at the center in the axial direction.
• the plunger 11 is movably supported in the axial direction via a bearing by a fixed core 21 and a support member 164, which will be described later.
• the plunger 11 is pushed toward the first side together with the regulating valve 170 by the solenoid section 20 when the solenoid section 20 is energized.
• the plunger 11 is pushed back toward the second side together with the adjustment valve 170 by the compression coil spring 163 when the solenoid section 20 is in a non-energized state.
• the housing 60 includes a substantially cylindrical outer housing 70 provided on the outside, and an inner housing 80 provided inside the outer housing 70.
• the outer housing 70 and the inner housing 80 are made of metal.
• the outer housing 70 is molded from metal and the inner housing 80 is molded from resin.
• the first side portion of the outer housing 70 is fixed to the outer peripheral surface of the damper case 113 of the cylinder portion 110 by, for example, welding.
• a female thread 70a is formed on the inner peripheral surface of the outer housing 70.
• the outer housing 70 includes a first cylindrical part 71 provided at the end on the second side, and a second cylindrical part provided on the first side of the first cylindrical part 71. 72.
• the inner diameter of the first cylindrical part 71 and the inner diameter of the second cylindrical part 72 are the same, and the outer diameter of the first cylindrical part 71 is smaller than the outer diameter of the second cylindrical part 72.
• a groove 74 recessed from the second end surface 73 toward the first side is formed over the entire circumference at the second end of the second cylindrical portion 72 on the inner side.
• the groove portion 74 has an inclined surface 75 on the outer side thereof, which is inclined with respect to the axial direction so that the diameter gradually decreases from the second side to the first side.
• the outer surface of the outer housing 70 including the outer circumferential surface 76 of the first cylindrical portion 71, the outer circumferential surface 77 of the second cylindrical portion 72, the end surface 73, and the groove portion 74, is painted.
• An example of the coating is cationic electrodeposition coating which has high corrosion resistance. Note that the cross-sectional shape of the groove portion 74 taken along a plane parallel to the axial direction may be semicircular.
• the inner housing 80 has a substantially cylindrical cylindrical portion 81 and an annular annular portion 82 that protrudes inward from the inner circumferential surface of the cylindrical portion 81 .
• a male thread 83 is formed at the first end of the cylindrical portion 81, and is fastened to a female thread 70a formed on the inner peripheral surface of the outer housing 70.
• the cylindrical portion 81 has a recess 84 recessed from the outer circumferential surface at a portion on the second side of the male thread 83 . It holds an O-ring 85 that seals between it and the surrounding surface.
• the cylindrical portion 81 has a first engaging portion 86 recessed from the inner circumferential surface formed at the end on the second side over the entire circumference.
• the solenoid section 20 includes a cover section 30 that covers the opening 61 of the housing 60, a fixed iron core 21, and a clip 22 that positions the cover section 30 in the axial direction with respect to the housing 60.
• the solenoid section 20 When the solenoid section 20 is energized, it pushes out the plunger 11 toward the first side.
• the clip 22 has a rectangular cross-sectional shape when cut along a plane parallel to the axial direction, with the axial direction being the shorter direction and the radial direction being the longer direction; It is a metal member that is C-shaped.
• the cover portion 30 includes a coil 31, a cover portion 40 that holds the coil 31 and covers the opening 61 of the housing 60, and a connector portion 32 for energizing the coil 31.
• the cover part 30 is formed by insert molding in which the metal coil 31 and the like are held in a mold, and the parts corresponding to the cover part 40 and the connector part 32 are filled with resin heated to a softening temperature. has been done.
• the cover part 40 protrudes to the first side from a disc-shaped part that covers the opening 61 of the housing 60, and includes a substantially cylindrical inner protrusion part 41 that is inserted into the housing 60, and an inner protrusion part 41 on the outside of the inner protrusion part 41.
• the substantially cylindrical outer protrusion 50 protrudes toward the first side.
• the inner protrusion 41 is provided outside the fixed iron core 21 and inside the housing 60, and has the coil 31 at a position that overlaps the movement area of the magnetic body 12 fixed to the plunger 11 in the axial direction. .
• a second engaging portion 45 recessed from the outer circumferential surface is formed over the entire circumference of the inner protruding portion 41 at a portion on the second side of the central portion in the axial direction.
• the second engaging portion 45 is formed at a position corresponding to the first engaging portion 86 formed in the cylindrical portion 81 of the inner housing 80 in the axial direction.
• the clip 22 is fitted into the second engaging portion 45 and the first engaging portion 86 .
• the outer protrusion 50 is provided outside the second end of the outer housing 70 and covers the second end of the outer housing 70. A gap between the outer protrusion 50 and the outer housing 70 is sealed with a seal body 90.
• the outer protrusion 50 has a first cylindrical part 51 provided at the end on the first side and a second cylindrical part 52 provided at the end on the second side.
• the outer diameter of the first cylindrical part 51 and the outer diameter of the second cylindrical part 52 are the same, and the inner diameter of the first cylindrical part 51 is larger than the inner diameter of the second cylindrical part 52.
• a groove portion 54 recessed from the first end surface 53 toward the second side is formed at the first end of the second cylindrical portion 52 and at the outer side.
• the groove portion 54 has an inclined surface 55 on the inner side thereof, which is inclined with respect to the axial direction so that the diameter gradually decreases from the second side to the first side. Note that the cross-sectional shape of the groove portion 54 taken along a plane parallel to the axial direction may be semicircular.
• the seal body 90 has an elliptical cross-sectional shape cut along a plane parallel to the axial direction before being assembled between the cover portion 30 and the outer housing 70, with the long side oriented in the axial direction.
• the seal body 90 is sandwiched between the groove portion 54 of the outer protrusion 50 of the cover portion 30 and the groove portion 74 of the outer housing 70, and the seal body 90 is sandwiched between the groove portion 54 of the outer protrusion portion 50 of the cover portion 30 and the groove portion 74 of the outer housing 70.
• the outer protrusion 50 is elastically deformed by the force applied thereto, thereby sealing the gap between the outer protrusion 50 and the outer housing 70.
• the seal body 90 is not limited to having an elliptical cross-sectional shape.
• the seal body 90 may be an O-ring or an X-ring.
• the cover part 30 Since the seal body 90 is sandwiched between the outer housing 70 and the outer protrusion 50 of the cover part 30 in an elastically deformed state, the cover part 30 has a structure in which the cover part 30 has an axial direction from the first side to the second side. A force acts in the direction towards. In this embodiment, even if this force acts on the cover part 30, the clip 22 fitted into the second engaging part 45 of the cover part 30 butts against the first engaging part 86 of the inner housing 80. Movement of the cover portion 30 toward the second side is suppressed.
• the solenoid 1 configured as described above can be assembled as follows. That is, the operator installs the parts constituting the damping mechanism such as the orifice plate 161, the pilot valve 162, the compression coil spring 163, the adjustment valve 170, the plunger 11, The parts constituting the valve portion 10 such as the magnetic body 12, the support member 164, the fixed iron core 21, etc. are assembled. Thereafter, the operator tightens the inner housing 80 to the outer housing 70. Then, the cover portion 30 is assembled to the housing 60 with the seal body 90 disposed in the groove portion 74 of the outer housing 70. At this time, the inner protrusion 41 is inserted into the inner housing 80 with the clip 22 fitted into the second engaging part 45 of the inner protrusion 41 of the cover part 30 .
• the inner protrusion 41 is moved inward. It is inserted into the housing 80. Thereafter, when the clip 22 is inserted to a position corresponding to the first engaging part 86 formed on the inner housing 80, the diameter expands and the outer part of the clip 22 fits into the first engaging part 86. . Thereby, after the cover part 30 is assembled to the housing 60, the cover part 30 is prevented from coming off from the housing 60.
• the first side surface of the clip 22 abuts against the first side surface of the second engaging portion 45
• the second side surface of the clip 22 abuts against the second side surface of the first engaging portion 86 . Therefore, even if the cover part 30 receives a force from the seal body 90 in the direction of moving away from the housing 60, it is suppressed from coming off from the housing 60.
• the solenoid 1 described above includes the solenoid part 20 (an example of a solenoid main body) having a coil 31 and an inner protrusion 41 (an example of a surrounding part) that covers the periphery of the coil 31 with molded resin.
• the solenoid 1 also includes a housing 60 into which the inner protrusion 41 is inserted, and a seal body 90 that seals a gap S between the solenoid section 20 and the housing 60.
• the solenoid portion 20 has an inclined surface 55 (an example of a first intersecting surface) in a direction that intersects with the axial direction, which is an example of the direction in which the inner protrusion 41 is inserted into the housing 60. It has an inclined surface 75 (an example of a second intersecting surface) in a direction that intersects with the first intersecting surface.
• the sealing body 90 seals the gap S by contacting the inclined surface 55 and the inclined surface 75.
• the seal body 90 comes into contact with the inclined surface 55 of the cover part 30 and the inclined surface 75 of the outer housing 70, so that the seal body 90 contacts the inclined surface 55 of the cover part 30 and the inclined surface 75 of the outer housing 70.
• the contact area between the inclined surface 55 and the inclined surface 75 and the seal body 90 is larger than that in a configuration in which they contact surfaces perpendicular to the axial direction.
• the seal body 90 since the seal body 90 according to this embodiment has an elliptical shape, the contact area with the inclined surface 55 and the inclined surface 75 is larger than that of an O-ring having a circular cross-sectional shape, for example, and the sealing performance is improved. improves.
• the seal body 90 since the inclined surface 55 and the inclined surface 75 are inclined in the same direction with respect to the axial direction, the seal body 90 is likely to be pinched between the inclined surface 55 and the inclined surface 75. The contact area with 75 is increased, and the sealing performance is improved.
• the seal body 90 also includes a groove 74 recessed from the second end surface 73 of the second cylindrical portion 72 of the outer housing 70 and a groove recessed from the first end surface 53 of the outer protrusion 50 of the cover portion 30. 54, for example, the long sides of the ellipse are prevented from falling in parallel with the radial direction. As a result, the sealing performance between the cover portion 30 and the housing 60 is improved.
• the seal body 90 has a function of sealing between the cover part 30 and the outer housing 70, and a function as a reaction force member that applies a force in a direction in which the cover part 30 moves away from the housing 60. It is a member.
• the clip 22 prevents the cover portion 30 from falling off from the housing 60. Therefore, according to the solenoid 1, parts necessary for fixing the cover part 30 can be omitted, so the number of parts can be reduced, and costs can be reduced. Further, the operator can easily assemble the solenoid 1. Further, since the seal body 90 is a general-purpose part, it can be used in common with members used for sealing other products.
• the outer housing 70 is made of metal, and the outer circumferential surface 77 and the inclined surface 75 are painted at least at the portions outside of the portions that are in contact with the seal body 90. This prevents the outer housing 70 from rusting. Furthermore, since the coating is cationic electrodeposition coating, corrosion resistance can be improved compared to, for example, when plating is applied.
• FIG. 4 is a diagram showing an example of a schematic configuration of the solenoid 2 according to the second embodiment.
• the solenoid 2 according to the second embodiment differs from the solenoid 1 according to the first embodiment in an outer housing 270 corresponding to the outer housing 70.
• points different from the first embodiment will be explained.
• the same components in the first embodiment and the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
• the outer housing 270 differs from the outer housing 70 according to the first embodiment in a second cylindrical portion 272 corresponding to the second cylindrical portion 72.
• the second cylindrical portion 272 has an inclined surface 275 at the end on the second side that is inclined with respect to the axial direction so that the diameter gradually increases from the second side to the first side.
• the inclined surface 275 is inclined in a direction different from the inclined surface 75 according to the first embodiment with respect to the axial direction. Therefore, the inclined surface 275 and the inclined surface 55 are inclined in different directions with respect to the axial direction.
• the seal body 90 contacts the inclined surface 55 of the cover part 30 and the inclined surface 275 of the outer housing 270, so that the seal body 90 contacts the inclined surface 55 and the inclined surface 275.
• the contact area becomes larger.
• the sealing performance of the gap S between the cover portion 30 and the outer housing 270 is improved, so that the reliability of the sealing structure within the outer housing 270 can be improved.
• the parts necessary for fixing the cover part 30 can be omitted, so the number of parts can be reduced and costs can be reduced. Further, the operator can easily assemble the solenoid 2. Further, since the seal body 90 is a general-purpose part, it can be used in common with members used for sealing other products. Further, since the seal body 90 is disposed in the groove portion 54 recessed from the first side end surface 53 of the outer protrusion portion 50 of the cover portion 30, the seal body 90 does not fall down so that, for example, the long side of the ellipse is parallel to the radial direction. is suppressed.
• the surface formed by the inclined surface 275 of the outer housing 270 and the outer peripheral surface 277 is an obtuse angle. Therefore, the thickness of the coating applied to the connection between the inclined surface 275 and the outer peripheral surface 277 of the outer housing 270 is unlikely to be smaller than the thickness of the coating applied to other parts, such as the outer peripheral surface 76. . As a result, the solenoid 2 has high corrosion resistance.
• FIG. 5 is a diagram showing an example of a modification of the outer housing 270 according to the second embodiment.
• the outer housing 270 has a curved surface 278 between the inclined surface 275 of the second cylindrical portion 272 and the outer circumferential surface 277 so that the diameter gradually increases from the second side to the first side. It's okay. That is, the outer housing 270 may have a curved surface 278 that connects the inclined surface 275 and the outer peripheral surface 277.
• the thickness of the coating applied to the curved surface 278, which is the connecting portion between the inclined surface 275 and the outer circumferential surface 277 of the outer housing 270 is reduced, for example, to other parts such as the outer circumferential surface 76. It is difficult for the film thickness to be smaller than the film thickness of the applied coating. As a result, the solenoid 2 has high corrosion resistance.
• FIG. 6 is a diagram showing an example of a schematic configuration of the solenoid 3 according to the third embodiment.
• the solenoid 3 according to the third embodiment is different from the solenoid 2 according to the second embodiment in a cover part 330 and an outer protrusion 350, which correspond to the cover part 30 and the outer protrusion 50, respectively.
• points different from the second embodiment will be explained.
• the same reference numerals are used for the same parts in the second embodiment and the third embodiment, and detailed explanation thereof will be omitted.
• the outer protrusion 350 differs from the outer protrusion 50 according to the second embodiment in that it has a second cylindrical part 352 that corresponds to the second cylindrical part 52.
• the second cylindrical portion 352 has an inclined surface 355 at the end on the first side that is inclined with respect to the axial direction so that the diameter gradually increases from the second side to the first side.
• the inclined surface 355 is inclined in a direction different from the inclined surface 55 according to the second embodiment with respect to the axial direction. Therefore, the inclined surface 355 and the inclined surface 275 are inclined in the same direction with respect to the axial direction.
• the seal body 90 contacts the inclined surface 355 of the cover portion 330 and the inclined surface 275 of the outer housing 270, so that the seal body 90 The contact area becomes larger.
• the sealing performance of the gap S between the cover portion 330 and the outer housing 270 is improved, so that the reliability of the sealing structure within the outer housing 270 can be improved.
• the solenoid 3 since the parts necessary for fixing the cover part 330 can be omitted, the number of parts can be reduced and costs can be reduced. Furthermore, the operator can easily assemble the solenoid 3.
• FIG. 7 is a diagram showing an example of a schematic configuration of the solenoid 4 according to the fourth embodiment.
• the solenoid 4 according to the fourth embodiment differs from the solenoid 3 according to the third embodiment in an outer housing 470 corresponding to the outer housing 270.
• points different from the third embodiment will be explained.
• the same parts are denoted by the same reference numerals in the third embodiment and the fourth embodiment, and detailed explanation thereof will be omitted.
• the outer housing 470 differs from the outer housing 270 according to the third embodiment in a second cylindrical portion 472 corresponding to the second cylindrical portion 272.
• the second cylindrical portion 472 has an orthogonal surface 475 orthogonal to the axial direction at the end on the second side instead of the inclined surface 275 that is inclined with respect to the axial direction.
• the seal body 90 contacts the inclined surface 355 of the cover portion 330 and the orthogonal surface 475 of the outer housing 470, so that both ends thereof contact the surface orthogonal to the axial direction.
• the contact area between the inclined surface 355 and the seal body 90 becomes larger.
• the sealing performance of the gap S between the cover portion 330 and the outer housing 470 is improved, so that the reliability of the sealing structure within the outer housing 470 can be improved.
• the solenoid 4 since parts necessary for fixing the cover part 330 can be omitted, the number of parts can be reduced and costs can be reduced. Further, the operator can easily assemble the solenoid 4.
• FIG. 8 is a diagram showing an example of a schematic configuration of the solenoid 5 according to the fifth embodiment.
• the solenoid 5 according to the fifth embodiment is different from the solenoid 3 according to the third embodiment in a cover part 530 and an outer protrusion part 550, which correspond to the cover part 330 and the outer protrusion part 350, respectively.
• points different from the third embodiment will be explained.
• the same components are denoted by the same reference numerals in the third embodiment and the fifth embodiment, and detailed description thereof will be omitted.
• the outer protrusion 550 differs from the outer protrusion 350 according to the third embodiment in that it has a second cylindrical portion 552 that corresponds to the second cylindrical portion 352 .
• the second cylindrical portion 552 has an orthogonal surface 555 orthogonal to the axial direction at the end on the first side instead of the inclined surface 355 that is inclined with respect to the axial direction.
• the seal body 90 contacts the orthogonal surface 555 of the cover portion 530 and the inclined surface 275 of the outer housing 270, so that both ends thereof contact the surface orthogonal to the axial direction.
• the contact area between the inclined surface 275 and the seal body 90 becomes larger.
• the sealing performance of the gap S between the cover portion 530 and the outer housing 270 is improved, so that the reliability of the sealing structure within the outer housing 270 can be improved.
• the solenoid 5 since parts necessary for fixing the cover part 530 can be omitted, the number of parts can be reduced and costs can be reduced. Further, the operator can easily assemble the solenoid 5.
• FIG. 9 is a diagram showing an example of a schematic configuration of the solenoid 6 according to the sixth embodiment.
• the solenoid 6 according to the sixth embodiment differs from the solenoid 1 according to the first embodiment in that a cover part 630 corresponding to the cover part 30 is different, and a sleeve 650 described later is fitted into the cover part 630. different.
• points different from the first embodiment will be explained.
• the same components in the first embodiment and the sixth embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
• the cover part 630 differs from the cover part 30 in that it does not have the outer protrusion 50. Further, the cover portion 630 is formed with a recessed portion 647 that is recessed from the end surface 631 that covers the opening 61 of the housing 60 .
• the recess 647 is formed by a parallel surface 648 parallel to the axial direction and an orthogonal surface 649 formed at the end on the second side and perpendicular to the axial direction.
• the solenoid 6 has a sleeve 650 corresponding to the outer protrusion 50 as a separate part of the cover part 630.
• the sleeve 650 is a molded resin product that is molded using a mold separately from the cover portion 630.
• the sleeve 650 has a first cylindrical part 651 and a second cylindrical part 652 that correspond to the first cylindrical part 51 and the second cylindrical part 52 of the outer protrusion 50, respectively.
• the sleeve 650 also has an end surface 653, a groove 654, and an inclined surface 655 that correspond to the end surface 53, groove 54, and inclined surface 55 of the outer protrusion 50, respectively.
• the sleeve 650 has a convex portion 656 that protrudes from the outer circumferential portion of the second side end surface of the second cylindrical portion 652 toward the second side.
• the convex portion 656 is a cylindrical protruding portion, and the diameter of the inner peripheral surface is smaller than the diameter of the parallel surface 648 of the cover portion 630.
• the sleeve 650 is press-fitted into the cover part 630 by fitting the convex part 656 into the concave part 647 of the cover part 630 with a tight fit.
• the convex portion 656 of the sleeve 650 is fitted into the concave portion 647 of the cover portion 630 with a loose fit.
• the seal body 90 contacts the inclined surface 655 of the cover portion 630 and the inclined surface 75 of the outer housing 70, so that the seal body 90 contacts the inclined surface 655 and the inclined surface 75.
• the contact area becomes larger.
• the sealing performance of the gap S between the cover portion 630 and the outer housing 70 is improved, so that the reliability of the sealing structure within the outer housing 70 can be improved.
• the parts necessary for fixing the cover part 630 can be omitted, so the number of parts can be reduced and costs can be reduced. Further, the operator can easily assemble the solenoid 6. Further, since the seal body 90 is a general-purpose part, it can be used in common with members used for sealing other products. Further, since the seal body 90 is disposed between the groove 654 of the sleeve 650 and the groove 74 of the outer housing 70, it is prevented from falling so that the long sides of the elliptical shape are parallel to the radial direction, for example. .
• cover part 630 and the sleeve 650 are not separate parts, but are made of resin, the cover part 630 is molded with a primary mold, the sleeve 650 is molded with a secondary mold, and the two are joined. It may be. Furthermore, in the cover section 30 according to the second embodiment, the cover section 330 according to the third and fourth embodiments, and the cover section 530 according to the fifth embodiment, the cover section 630 and the sleeve 650 according to the sixth embodiment are different from each other. As such, it may be constructed of two separate parts fitted together or two parts joined together.
• FIG. 10 is a diagram showing an example of a schematic configuration of the solenoid 7 according to the seventh embodiment.
• the solenoid 7 according to the seventh embodiment differs from the solenoid 3 according to the third embodiment in that a cover part 730 corresponding to the cover part 330 is different, and a sleeve 750 described later is fitted into the cover part 730. different.
• points different from the third embodiment will be explained.
• the same components in the third embodiment and the seventh embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
• the cover part 730 differs from the cover part 330 in that it does not have the outer protrusion part 350. Further, a recess 747 is formed in the cover portion 730 and is recessed in a cylindrical shape from the end surface 731 that covers the opening of the outer housing 70 .
• the solenoid 7 has a sleeve 750 corresponding to the outer protrusion 350 as a separate part of the cover part 730.
• the sleeve 750 is a molded resin product that is molded using a mold separately from the cover portion 730.
• the sleeve 750 has a first cylindrical portion 751, a second cylindrical portion 752, and an inclined surface 755, which correspond to the first cylindrical portion 51, second cylindrical portion 352, and inclined surface 355 of the outer protrusion 350, respectively. are doing. Further, the sleeve 750 has a convex portion 756 that protrudes toward the second side from the inner peripheral portion of the second side end surface of the second cylindrical portion 752 . The convex portion 756 is a cylindrical protruding portion. The sleeve 750 is press-fitted into the cover part 730 by fitting the convex part 756 into the concave part 747 of the cover part 730 with a tight fit. Alternatively, the convex portion 756 of the sleeve 750 is fitted into the concave portion 747 of the cover portion 730 with a loose fit.
• the seal body 90 contacts the inclined surface 755 of the sleeve 750 and the inclined surface 275 of the outer housing 270.
• the contact area becomes larger.
• the sealing performance of the gap S between the cover portion 730 and the outer housing 270 is improved, so that the reliability of the sealing structure within the outer housing 270 can be improved.
• the parts necessary for fixing the cover part 730 can be omitted, so the number of parts can be reduced, and costs can be reduced. Further, the operator can easily assemble the solenoid 7. Further, since the seal body 90 is a general-purpose part, it can be used in common with members used for sealing other products.
• cover part 730 and the sleeve 750 are not separate parts, but are made of resin, the cover part 730 is molded with a primary mold, the sleeve 750 is molded with a secondary mold, and the two are joined together. It may be. Furthermore, in the cover section 30 according to the second embodiment, the cover section 330 according to the third and fourth embodiments, and the cover section 530 according to the fifth embodiment, the cylindrical shape in the cover section 730 according to the seventh embodiment is Like the recess 747 and the cylindrical projection 756 of the sleeve 750, a cylindrical recess and a cylindrical projection may be used to fit or join.
• Solenoid part an example of the solenoid main body

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• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Power Engineering (AREA)
• Magnetically Actuated Valves (AREA)

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• 2023
  • 2023-05-01 JP JP2024520420A patent/JP7624557B2/ja active Active
  • 2023-05-01 CN CN202380013667.2A patent/CN117957621A/zh active Pending
  • 2023-05-01 DE DE112023000194.4T patent/DE112023000194T5/de active Pending
  • 2023-05-01 WO PCT/JP2023/017028 patent/WO2023219027A1/ja not_active Ceased
• 2024
  • 2024-03-20 US US18/610,986 patent/US20240229963A1/en active Pending

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