Abstract: A valve drive device comprising a valve body drive mechanism including a drive gear, a driven gear for turning the valve body, and a power transmission switching part provided with a protruded part of the drive gear and a turning restriction part turnably attached to the driven gear. The turning restriction part includes a lever part which is provided with a first contact part structured to contact with the protruded part when the drive gear is turned to a first direction and a second contact part structured to contact with the protruded part when the drive gear is turned to an opposite direction to perform a separating operation from a contact position with a lever turning restriction part. The second contact part is formed in a shape having an interference avoiding part on a side of the first contact part.

Abstract: A valve device is provided. In the valve device, a valve element is rotated about a support shaft, based on rotation of a valve element drive member to switch a through hole that communicates with an outlet formed in a valve seat to adjust a flow rate. The through hole opens in a bottom surface of a flow channel securing groove formed in the valve element. The flow channel securing groove has a long hole shape in which a width in a first direction being a moving direction of the valve element, is smaller than a width in a second direction orthogonal to the first direction. Thus, a region overlapping with the outlet is large as compared to a case where a perfect circular flow channel securing groove is formed.

Abstract: Provided is a valve drive device including a power transmission switching unit capable of reducing noise and improving positional accuracy to perform smooth power switching. In the valve drive device, a valve element drive mechanism includes a motor, a driving gear, a driven gear, and a power transmission switching unit configured to switch between a power transmission state and a power non-transmission state. The power transmission switching unit includes at least one convex unit formed on the driven gear, a rotation restriction unit that is pivotably mounted on the driven gear with respect to the driven gear and engageable with the at least one convex unit, and a lever pivoting restriction unit formed on the driven gear and configured to restrict the rotation restriction unit from pivoting. The rotation restriction unit includes a pivot shaft and a lever unit.

Abstract: Provided is a valve drive device including a power transmission switching unit capable of reducing noise and suppressing a tilting of a pivot shaft to perform smooth power transmission switching. In the valve drive device including a valve element drive mechanism, the valve element drive mechanism includes a motor, a driving gear, a driven gear, and a power transmission switching unit configured to switch between a power transmission state and a power non-transmission state. The power transmission switching unit includes at least one convex unit formed on the driving gear, and a rotation restriction unit that is pivotably mounted on the driven gear with respect to the driven gear and engageable with the at least one convex unit. The rotation restriction unit includes a pivot shaft, a lever unit, and a foot unit.

Abstract: There is provided a valve drive device comprising: a motor including a stator with a core member and a drive coil, and a rotor provided with a drive magnet; a drive gear configured to rotate together with the rotor, a driven gear configured to rotate a valve element; and a power transmission switching unit configured to switch between a power transmission state where the drive gear and the driven gear mesh with each other and a power non-transmission state where a meshing state between the drive gear and the driven gear is released. The power transmission switching unit includes a plurality of convex units formed on the drive gear, and a rotation restriction unit provided in the driven gear and configured to engage with each of the convex units to perform switching of the power transmission.

Abstract: There is provided a valve drive device including: a base including a fluid inlet, a fluid outlet, and a valve seat surface, at least one of the fluid inlet and the fluid outlet being opened at the valve seat surface; a cover configured to define a valve chamber; a valve element configured to open and close any one of the fluid inlet and the fluid outlet in the valve chamber; and a valve element driver configured to drive and rotate the valve element. The valve element driver includes: a motor; a drive gear configured to rotate together with a rotor of the motor; a driven gear configured to rotate, in a state of meshing with the drive gear, the valve element by rotation of the drive gear; and a power transmission switching unit.

Abstract: To suppress variation, among rotors, in a relative position between the position of magnetic poles of a magnet and the rotation position (for example, the position of teeth of a pinion) of an integral rotation unit configured to rotate integrally with the rotor main body. A motor includes: a rotor including a magnet fixed to an outer periphery of a rotor main body, and an integral rotation unit assembled to the rotor main body; and a spindle configured to rotatably support the rotor. The magnet includes a positioning marker used when the rotor main body is fixed to the magnet, and the integral rotation unit and the rotor main body are configured to be capable of being assembled in a set relative arrangement.

Abstract: There is provided a motor including a rotor having a magnet fixed to the outer periphery of a rotor main body, a spindle for rotatably supporting the rotor via the rotor main body, a first bearing unit provided at one end side of the rotor in a longitudinal direction of the spindle, and a second bearing unit provided at the other end side of the rotor in the longitudinal direction of the spindle. The first bearing unit slidably contacts the spindle with a set clearance, and the second bearing unit includes an elastic bearing unit slidably contacting the spindle in a state of being elastically pressed against the spindle. When the first bearing unit is defined as a bearing unit at the one end side in the longitudinal direction of the spindle, the elastic bearing unit is configured to be located as a bearing unit at the other end side.

Abstract: A drive device with an abnormality detection mechanism may include a drive source; a drive member to which power of the drive source is transmitted; a driven member operably coupled to the drive member; and a detector structured to output a signal in response to the driven member being turned in the second direction around the second axial line. The driven member may be structured such that, in response to the drive member being turned in a first direction around a first axial line, the driven member is turned in a first direction around a second axial line; and, in response to transmission of the power from the drive member being disconnected, the driven member is turned in a second direction around the second axial line.

Abstract: A valve device is provided with a valve body driving member rotated by driving force from a drive source, and a valve body rotating in a circumferential direction integrally with the valve body driving member. Fitting parts fitted one another are formed in the lower surface of the valve body driving member and the upper surface of the valve body. The valve body has hole parts formed therethrough in the axial direction thereof. Groove parts that are flow channels linking from the outer peripheral surface of the valve body to the hole parts are formed in the upper surface of the valve body. The fitting parts and the groove parts on the valve body side have connecting parts that are portions where the fitting parts and the groove parts are formed continuously in the upper surface of the valve body without being separated by other elements constituting the valve body.

Abstract: A rotation transmission mechanism may include a plurality of rotation transmission members having a drive wheel and a driven wheel, and an urging member which urges the driven wheel in a reverse direction to a rotational direction by power of the drive source. The drive wheel and the driven wheel are provided with engagement parts structured to transmit turning of the drive wheel to the driven wheel, the drive wheel is provided with a cam face forming part on which the engagement part of the driven wheel is slid at a rotational position where the engagement parts are not engaged with each other, and a brake member structured to generate a rotation load is disposed in a range on an upstream side of a power transmission path including the drive wheel with respect to the driven wheel in the power transmission path transmitting the power of the drive source.

Abstract: A switch mechanism may include a lever holding part which is provided in a case, a turnable lever provided with a shaft part turnably supported by the lever holding part and a first arm part and a second arm part protruded from the shaft part, an urging member structured to urge the turnable lever, and a switch whose state is switched by displacement of the turnable lever. The turnable lever is attached to the lever holding part in a state that the urging member is engaged between the first arm part and the second arm part, and the urging member is movable between an engaging position, where the urging member is engaged between the first arm part and the second arm part, and an engaging release position, where the urging member is engaged with the second arm part and is disengaged from the first arm part.

Abstract: A damper device may include a frame structured of a tube part and an opening part formed on an inner side of the tube part, a baffle which is disposed on the inner side of the tube part and is supported by the frame in a state that the baffle is capable of being turned with a first edge as a turning center, and a baffle drive mechanism structured to turn the baffle between a closing position where the opening part is closed and an open position where the opening part is opened. The baffle is formed with a cut-out part at least one position of an edge except the first edge.

Abstract: A rotation transmission mechanism may include a drive wheel structured to rotate to one side, a driven wheel turned by the drive wheel to one side, and an urging member urging the driven wheel to turn to the other side. The drive wheel may include a drive teeth forming part where drive teeth structured to turn the driven wheel to the one side are provided at positions different from each other in an axial line direction, and a cam face forming part on which the driven wheel is slid. The driven wheel is provided with a driven teeth forming part where driven teeth provided at positions different from each other in an axial line direction are disposed over an angular range so that, when the drive wheel is turned to the one side, the drive teeth are sequentially abutted with the driven teeth.

Abstract: A valve device including: a drive source; a base having a valve seat surface in which a fluid inflow hole and outflow hole are formed; a case body covering the valve seat surface-side of the base, and a valve chamber together with the base; a first valve body for opening and closing the outflow hole; and a second valve body for opening and closing the inflow hole is provided. The output part of the drive source, the first and second valve bodies are housed in the valve chamber. The first valve body is a substantially cylindrical member, one end surface of which is in sliding contact with the peripheral edge of the outflow hole in the valve seat surface, receives the driving force of the drive source and pivots such that the outflow hole is switched between a closed state and a fully or partially opened state.

Abstract: A valve device includes: a drive source; a turning member; a valve body, being fixed to the turning member and integrally turned with the turning member; and a valve seat, being sliding contacted with an end face of the valve body opposite to the end face of the valve body contacting with the turning member. The valve seat has at least one outflow hole for fluid passing through the valve device. The valve body has a throttle part being a minute hole that communicates with the outflow hole in a part of a turning angle of the valve body. A flow passage has an opening part provided between opposed faces of the turning member and the valve body, thus the throttle part is communicated with an inflow hole for the fluid and inflow of an individual matter having a size unable to pass through the throttle part is shielded.

Abstract: A refrigerant valve device may include a base provided with an inlet port, an outlet port and a valve seat face; a cover to section a valve chamber between the valve seat face and the cover; a valve body turnably disposed at a position shifted to a side of one port inside the valve chamber, the valve body being provided with a contact face sliding on the valve seat face; and a valve body drive mechanism to turn the valve body. The valve body drive mechanism may turn the valve body and thereby a refrigerant flowing passage from the inlet port to the outlet port through the valve chamber is switched at least to a first refrigerant flowing passage and to a second refrigerant flowing passage. The refrigerant flowing amount in the first refrigerant flowing passage may be smaller than a refrigerant flowing amount in the second refrigerant flowing passage.

Abstract: A valve device including: a drive source; a base having a valve seat surface in which a fluid inflow hole and outflow hole are formed; a case body covering the valve seat surface-side of the base, and a valve chamber together with the base; a first valve body for opening and closing the outflow hole; and a second valve body for opening and closing the inflow hole is provided. The output part of the drive source, the first and second valve bodies are housed in the valve chamber. The first valve body is a substantially cylindrical member, one end surface of which is in sliding contact with the peripheral edge of the outflow hole in the valve seat surface, receives the driving force of the drive source and pivots such that the outflow hole is switched between a closed state and a fully or partially opened state.

Abstract: A valve device includes: a drive source; a turning member; a valve body, being fixed to the turning member and integrally turned with the turning member; and a valve seat, being sliding contacted with an end face of the valve body opposite to the end face of the valve body contacting with the turning member. The valve seat has at least one outflow hole for fluid passing through the valve device. The valve body has a throttle part being a minute hole that communicates with the outflow hole in a part of a turning angle of the valve body. A flow passage has an opening part provided between opposed faces of the turning member and the valve body, thus the throttle part is communicated with an inflow hole for the fluid and inflow of an individual matter having a size unable to pass through the throttle part is shielded.

Abstract: A cover structure in a motor may include a rotor, a stator having a drive coil, a connector provided so that an engaging connector is engaged in a rotation shaft direction of the rotor, a main body cover covering outer peripheries of the stator and the connector and integrally formed with a connector cover, coil terminals extended from the stator to an outer side, connector terminals supported by a terminal support part integrally formed with the connector cover and are extended at a position offset from the coil terminals in the rotation shaft direction, and a wall part which is provided on a radially inner side of the terminal support part along the connector terminals. The wall part is located on an outer side in the radial direction with respect to the coil terminals, and a space is formed on a radially inner side of the wall part.