WO2017038283A1 - Rotary solenoid - Google Patents
Rotary solenoid Download PDFInfo
- Publication number
- WO2017038283A1 WO2017038283A1 PCT/JP2016/071174 JP2016071174W WO2017038283A1 WO 2017038283 A1 WO2017038283 A1 WO 2017038283A1 JP 2016071174 W JP2016071174 W JP 2016071174W WO 2017038283 A1 WO2017038283 A1 WO 2017038283A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- casing
- rotary solenoid
- magnet
- movable body
- Prior art date
Links
Images
Classifications
-
- 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
- H01F7/14—Pivoting armatures
- H01F7/145—Rotary electromagnets with variable gap
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
-
- 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
Definitions
- the present invention relates to a rotary solenoid including a fixed body portion having a casing provided with a bearing portion and a movable body portion having a rotation shaft that is rotatably supported by the bearing portion.
- a rotary solenoid including a fixed body portion having a casing in which a pair of bearing portions are arranged on the front and rear sides and a movable body portion having a rotating shaft rotatably supported by the pair of bearing portions, particularly including a magnet or the like.
- a rotary solenoid of a type in which a movable part turns around a pivot shaft a rotary solenoid disclosed in Patent Document 1 already proposed by the present applicant is known.
- the rotary solenoid disclosed in Patent Document 1 aims to reduce the cost based on the reduction in the number of parts and the number of assembly steps, and to reduce the overall size and compactness.
- a shaft supported rotatably by a bearing portion provided on the shaft, a movable body portion having a magnet portion that can be turned by fixing one end side to the shaft and making the other end side a free end, and fixed to the casing
- a field part capable of attracting or repelling the movable body part by power feeding control, and in particular, a shaft is arranged at a position corresponding to one corner part in the triangle and corresponding to the remaining corner part.
- the moment of inertia increases because the weight of the movable body increases.
- the movable body restricting portion that restricts the turning range of the movable body portion is provided inside the casing, the impact sound generated during restriction tends to increase. Therefore, there is room for further improvement from the viewpoint of improving the quietness.
- the present invention aims to provide a rotary solenoid that solves such problems in the background art.
- the rotary solenoid 1 is rotated by a fixed body portion Sc having a casing 2 provided with a pair of bearing portions 3f and 3r positioned at the front and rear and a pair of bearing portions 3f and 3r.
- a rotary solenoid provided with a movable body portion Sm having a rotating shaft 4 that is freely supported, a coil 6 held by the holding block portion 5, a shaft center line of the coil 6 fixed to the holding block portion 5
- a movable body Sm provided with a rotating shaft 4 arranged in parallel with Ls and an attracted child 7 formed of a magnetic material fixed at a predetermined position of the holding block 5 is provided.
- the movable body portion Sm is provided with a single coil 6, connected to the winding ends 6s and 6t of the coil 6, and the length of the movable body portion Sm within the turning range Zm. It is possible to provide a pair of lead wires 11s and 11t arranged in the casing 2 by selecting a length that allows the displacement of the movable body portion Sm.
- the holding block portion 5 may be provided with holding slit portions 12 s and 12 t for holding the lead wires 11 s and 11 t at a portion Xn opposite to the coil 6 when viewed from the rotating shaft 4.
- a printed wiring board 5p having circuit wiring portions 5ps, 5pt that is fixed to one surface of the holding block portion 5 and connects the winding ends 6s, 6t of the coil 6 and the pair of lead wires 11s, 11t is provided. It may be provided. Furthermore, the holding block portion 5 can be provided with restriction stopper portions 13a and 13b that abut against the inner surface of the casing 2 and perform position restriction corresponding to both end positions Xa and Xb of the turning range Zm.
- the magnet portions 8a and 8b are formed by a single magnet 8ap and 8bp disposed on the inner surface 2p on one side of the casing 2 facing one end portion of the axial direction Fs of the coil 6. Can be configured.
- the other inner surface 2q facing the inner surface 2p on one side of the casing 2 can be provided with magnetic flux collecting portions 14a and 14b protruding from the inner surface 2q on the other side and facing the magnets 8ap and 8bp, respectively. .
- the attracted child 7 can be disposed in the inner space of the coil 6 and closer to the rotating shaft 4 than the central position of the coil 6, and a pair of magnets 8ap, 8aq, and 8bp, The distance to one magnet 8ap, 8bp in 8bq can be different from the distance to the other magnet.
- the attracted child 7 has a cross-sectional area perpendicular to the axis selected within a range of 0.1 to 10% with respect to a cross-sectional area perpendicular to the axis in the inner space of the coil 6, and both ends of the swivel range Zm.
- the lead for guiding at least the lead wires 11s and 11t by positioning and arranging the fixed body portion Sc inside the casing 2 and integrally forming the fixed body portion Sc.
- An internal frame portion 17 having a line cover 17c can be provided.
- the inner frame 17 has a pair of left and right block restricting portions 18a and 18b that abut against the restricting stopper portions 13a and 13b in the holding block portion 5 and perform position restriction corresponding to both end positions Xa and Xb of the turning range Zm.
- Can be provided integrally, and one bearing portion 3r of the pair of bearing portions 3f, 3r can be provided integrally.
- the magnets 8ap, 8bp, 8aq, 8bq are arranged on the inner surface of the casing 2 facing the axial direction Fs end of the coil 6 supported by the rotating shaft 4, and the arrangement space for the casing 2 inner surfaces 2p, 2q is arranged.
- a circuit wiring portion fixed to the holding block portion 5 on one side of the holding block portion 5 and connecting the winding ends 6s and 6t of the coil 6 and the pair of lead wires 11s and 11t. If the printed wiring board 5p having 5 ps and 5 pt is provided, both the winding ends 6s and 6t of the coil 6 and the pair of lead wires 11s and 11t can be fixed on the printed wiring board 5p. The connection between 6t and the pair of lead wires 11s and 11t can be easily and reliably performed.
- the lead positions of the pair of lead wires 11 s and 11 t are set by the circuit wiring portions 5 ps and 5 pt, and the lead wires 11 s leading around the inside of the casing 2 by separating the pair of lead positions as much as possible. Since the radius of curvature at the curved portion of 11t can be increased, the durability of the lead wires 11s and 11t and the connection portion with respect to repetitive rotational displacement of the movable body portion Sm can be further increased. Furthermore, the fixed fixing of the connection part can improve the fixing strength and durability against vibrations and the like, and even when the holding block portion 5 and the printed wiring board 5p are integrally formed by insert molding or the like, stability during molding is ensured. Good molding can be performed by securing the property.
- the movable block portion 5 is movable. Since the moment of inertia can be reduced by reducing the weight of the body part Sm, even when the restriction stopper parts 13a and 13b are provided inside the casing 2, the impact sound at the time of collision can be reduced, and the silence is further improved. Can be increased.
- the magnet portions 8a and 8b are constituted by a single magnet 8ap and 8bp disposed on the inner surface 2p on one side of the casing 2 facing the one end portion of the axial direction Fs of the coil 6 according to a preferred embodiment. Since the minimum number of parts is sufficient, the embodiment can be implemented as the most advantageous form from the viewpoint of reducing the size and cost of the rotary solenoid 1.
- magnetic flux collecting portions 14a and 14b projecting from the inner surface 2q on the other side facing the inner surface 2p on the one side of the casing 2 and projecting from the inner surface 2q on the other side are opposed to the magnets 8ap and 8bp, respectively. If provided, the density of the magnetic flux passing through the coil 6 can be further increased by the converging action of the magnetic lines of force by the magnetic flux collecting portions 14a and 14b, which can contribute to further improvement in responsiveness and output torque.
- a pair of magnets 8ap, 8aq, 8a and 8b which are arranged on the inner surfaces 2p and 2q on opposite sides of the casing 2, facing the opposite ends of the coil 6 in the axial direction Fs, respectively.
- the number of magnets is doubled compared to the case where the magnets 8 ap and 2 bp are arranged only on the inner surface 2 p on one side of the casing 2, but the response, output torque and magnetic balance of the rotary solenoid 1 are doubled. From the viewpoint of ensuring stability, it can be implemented as the most advantageous mode.
- the magnets 8ap, 8bp, 8aq, 8bq are attracted and fixed to the inner surfaces 2p, 2q of the casing 2, and one or more positioning projections are integrally formed on the inner surfaces 2p, 2q of the casing 2. If positioning is performed by 15..., It is not necessary to add a part for attaching the magnets 8 ap..., So that it is possible to easily and cost-effectively perform positioning of the magnets 8 ap. In addition, since the magnets 8ap and the inner surface 2p of the casing 2 are in direct surface contact, a good magnetic circuit (magnetic path) can be configured.
- the change angle of the suction force can be further increased, and the suction force can be maximized at both end positions Xa and Xb, so that a stable self-holding action can be secured.
- the distance to the one magnet 8ap, 8bp in the pair of magnets 8ap, 8aq and 8bp, 8bq may be different from the distance to the other magnet. Since an appropriate force can be applied to the axial direction Fs of the rotating shaft 4, it is possible to prevent the movable body portion Sm from rattling and to suppress generation of unnecessary vibration and noise.
- the cross-sectional area perpendicular to the axis of the attracted child 7 is selected within the range of 0.1 to 10% with respect to the cross-sectional area perpendicular to the axis in the inner space of the coil 6, Secure the necessary suction force (holding torque) to obtain the self-holding force at the time of stopping and ensure the stable self-holding action from the viewpoint of eliminating unnecessary suction force, and easily optimize it Can do.
- the center position 7c is at the position of the edge portions Ea, Eb ... of the magnets 8ap, 8bp ... at the both ends Xa, Xb of the turning range Zm.
- the self-holding force can be applied even when no power is supplied, so that the movable body portion Sm is stopped at both end positions Xa and Xb.
- the size of the attracted child 7 can be reduced, and even when the influence on energization (at the start of movement) is reduced, it can be stopped reliably.
- a pair of left and right block restrictions that regulate the position corresponding to both end positions Xa and Xb of the turning range Zm by contacting the inner frame part 17 with the restriction stopper parts 13a and 13b in the holding block part 5 If the portions 18a and 18b are provided integrally, the displacement of the holding block portion 5 is restricted by the collision with the inner frame portion 17, so that the shock absorption at the time of the collision is selected by selecting the shape and material of the inner frame portion 17. Bound reduction and noise reduction can be achieved.
- the separate bearing portion 3r is not necessary, thereby reducing the number of parts. This can contribute to cost reduction and improvement in manufacturability, and can accurately position the bearing portion 3r with respect to other functional parts (for example, the block restricting portions 18a and 18b).
- a sectional front view of a rotary solenoid according to a preferred embodiment of the present invention Sectional side view of the rotary solenoid, Sectional front view showing a wiring system of the rotary solenoid, A cross-sectional side view showing an extracted magnet mounting structure for the rotary solenoid, External front view of the rotary solenoid, The principle block diagram for explaining the relationship between the magnet of the rotary solenoid and the attracted child, A schematic cross-sectional side view for explaining the magnetic circuit of the rotary solenoid, A schematic sectional plan view for explaining a magnetic circuit of the rotary solenoid, Action explanatory diagram of the rotary solenoid, Response waveform diagram of current magnitude with respect to time from energization start of the rotary solenoid, Change characteristic diagram of output torque with respect to rotation angle of movable body of same rotary solenoid, Sectional front view showing a wiring system of a rotary solenoid according to a modified embodiment of the present invention, Sectional front view of a rotary solenoid according to
- FIG. 14 is a cross-sectional plan view of a rotary solenoid according to the modified example of FIG.
- FIG. 17 is a cross-sectional front view taken along line C16-C16 in FIG. 17 of a rotary solenoid according to another modified embodiment of the present invention; Sectional side view of the rotary solenoid, Front view of a printed circuit board that constitutes a holding block portion provided for the rotary solenoid, A cross-sectional front view showing a state in which the inner frame portion is assembled to the housing portion provided in the rotary solenoid, External perspective view of the internal frame part provided in the rotary solenoid,
- the rotary solenoid 1 is roughly divided into a fixed body Sc having a casing 2 provided with a pair of bearing portions 3f and 3r positioned at the front and rear, and a rotation supported rotatably by the pair of bearing portions 3f and 3r. And a movable body Sm having a shaft 4.
- the movable body portion Sm includes a holding block portion 5 integrally formed of a synthetic resin material that is an insulating material, and the holding block portion 5 has a cylindrical shape arranged on the upper portion.
- the block upper portion 5u and a flat plate-shaped block lower portion 5d extending downward from the central position in the axial direction Fs of the block upper portion 5u.
- the fixed body portion Sc includes a casing 2 formed of a magnetic material (preferably a soft magnetic material).
- the casing 2 includes a housing portion 2m whose front surface is an open surface.
- the lid portion 2c covers the open surface of the housing portion 2m.
- the inner surface of the lid portion 2 c becomes the inner surface 2 q of the casing 2
- the inner surface of the housing portion 2 m facing (facing) the inner surface 2 q becomes the inner surface 2 p of the casing 2.
- the casing 2m and the lid 2c constitute a magnetic circuit (magnetic path) through which magnetic lines of force from two sets of magnets 8a and 8b, which will be described later, pass, so that the design, cost, and weight are allowed as much as possible. It is desirable to increase the wall thickness. In the case of illustration, the thickness was selected to be 1.5 [mm], which is about 1.5 times that of a normal casing. In addition, the height dimension of the casing 2 shown in FIG. 1 is 35 [mm]. Since the rotary solenoid 1 according to the present embodiment can be reduced in size in terms of structure and performance, the thickness of the casing 2 can be increased accordingly. As a result, the magnetic path cross-sectional area can be increased, the magnetic loss related to the magnetic path can be reduced, and the mechanical strength (rigidity) can be increased. And it can also contribute to the improvement of the quietness mentioned later.
- one magnet portion 8a is composed of a magnet 8ap fixed to the inner surface 2p of the casing 2 and a magnet 8aq fixed to the inner surface 2q of the casing 2, and the other magnet.
- the part 8b is composed of a magnet 8bp fixed to the inner surface 2p of the casing 2 and a magnet 8bq fixed to the inner surface 2q of the casing 2.
- the magnet portions 8a and 8b are formed by a pair of magnets 8ap, 8aq, and 8bp, 8bq disposed on the inner surfaces 2p and 2q on opposite sides of the casing 2, which are opposed to both ends in the axial direction Fs of the coil 6, respectively. Composed.
- the number of magnets is doubled compared to the case where the magnets 8ap and 2bp are arranged only on the inner surface 2p on one side of the casing 2, but the response, output torque, magnetic balance and stability of the rotary solenoid 1 are stable.
- one magnet 8ap can be fixed to the inner surface 2p of the casing 2 as follows.
- the magnet 8ap is formed in a flat rectangular parallelepiped shape as shown in FIGS. 3 and 4, and an inclined regulating surface 8x is formed by making one corner portion into a slice shape.
- the magnet 8ap is magnetized such that one of the two opposing surfaces having the largest area is an N pole and the other is an S pole. Therefore, by providing the regulation surface 8x, it is possible to prevent a manufacturing error that causes the front and back to be attached in the opposite direction.
- FIG. 4 shows the positioning protrusions 15 appearing on the outer surface of the casing 2.
- the holding block portion 5 in the movable body portion Sm described above is configured in consideration of the following points in relation to the fixed body portion Sc.
- restriction stopper portions 13a and 13b are provided on the left and right sides of the block lower part 5d, respectively, which are in contact with the inner surface of the casing 2 and perform position restriction corresponding to both end positions Xa and Xb of the turning range Zm.
- the rotary solenoid 1 since the coil 6 is arranged on the movable body portion Sm, the movable body portion Sm can be reduced in weight and the moment of inertia can be reduced.
- the attracted child 7 uses a pin member formed in the shape of a round bar, and is arranged so that the end face (illustration has a diameter of 1.7 [mm]) is parallel to the magnetic pole face of each magnet 8ap. .
- the holding block portion 5 it is possible to prevent the holding block portion 5 from being removed by forming a step at an intermediate position of the pin member.
- the attracted child 7 when the attracted child 7 is arranged, the distance between the pair of magnets 8ap, 8aq and 8bp, 8bq with respect to one magnet 8ap, 8bp is different from the distance with respect to the other magnet. That is, as shown in FIGS. 2 and 6, the attracted child 7 is arranged closer to the one magnet 8 ap (8 bp) side. With this arrangement, an appropriate force can be applied to the axial direction Fs of the rotating shaft 4, so that the movable body portion Sm can be prevented from rattling and unnecessary vibration and noise can be generated. There is an advantage that can be suppressed.
- the size of the end face of the attracted child 7, that is, the cross-sectional area perpendicular to the axis of the attracted child 7 is in the range of 0.1 to 10% with respect to the cross-sectional area perpendicular to the axis in the inner space of the coil 6. Select. By selecting in this way, it is possible to reliably realize a stable self-holding action from the viewpoint of securing a necessary suction force (holding torque) to obtain a self-holding force at the time of stopping and eliminating unnecessary suction force. Optimization can also be performed easily. More specifically, by making the suction torque of the sucked child 7 approximately 5 to 50% with respect to the torque when the coil 6 is energized, it is possible to swing and stop (self-holding by suction). Become.
- the suction torque of the sucked child 7 is 5%, which is the lower limit, it is desirable to select the cross-sectional area perpendicular to the axis of the sucked child 7 from 0.1 to 1%, and the upper limit. If it is 50 [%], it is desirable to select the cross-sectional area perpendicular to the axis of the attracted child 7 to 1 to 10 [%].
- the attracted child 7 is arranged in the inner space of the coil 6 and closer to the rotating shaft 4 than the central position of the coil 6.
- the center position is a direction perpendicular to the axis, and means the center position in the radial direction and the turning direction from the rotating shaft 4.
- the turning range Zm is narrowed and the torque at the start of turning is insufficient (torque obtained by subtracting the suction torque from the attracted child 7 from the torque generated by the coil 6 (startup (Corresponding to the torque of the hour) becomes too small.
- the diameter of the attracted child 7 is selected to be 1 to 2 [mm] and arranged at a position of 10 [mm] in the radial direction with respect to the center of the rotating shaft 4, 0.005 A holding torque of .about.0.02 [Nm] can be obtained.
- the center position 7c is the magnets 8ap, 8bp at both end positions Xa, Xb of the turning range Zm of the movable body Sm. Are selected so as to be located within a predetermined range Zs in the turning direction Fr with respect to the positions of the edge portions Ea, Eb.
- the predetermined range Zs is substantially the same as the diameter dimension of the attracted child 7.
- the movable body portion Sm is connected to the winding ends 6s and 6t of the coil 6 and the length thereof is selected so as to allow the displacement of the movable body portion Sm in the turning range Zm.
- a pair of lead-out leads 11s and 11t are provided.
- the lead wires 11s and 11t are led out to a portion Xn 180 [°] opposite to the coil 6 in the holding block portion 5 (block upper portion 5u).
- Holding slit portions 12s and 12t for holding the lead wires 11s and 11t are provided.
- the intermediate positions of the lead wires 11s and 11t connected to the winding ends 6s and 6t in the coil 6 can be held by the holding slit portions 12s and 12t.
- the stress applied to the connecting portions of the lines 11s and 11t can be prevented, and disconnection at the connecting portions can be avoided.
- reference numeral 17 c denotes a lead wire cover that guides the lead wires 11 s and 11 t formed of an insulating material such as a rubber material or a synthetic resin material.
- the lead wire cover 17 c is disposed inside the casing 2. It is positioned as one form of the internal frame part 17 to distribute. Therefore, the lead wires 11s and 11t are led out of the casing 2 through the inside of the lead wire cover 17c.
- Providing such an inner frame portion 17 formed with the lead wire cover 17c can regulate the lead-out positions of the lead wires 11s and 11t arranged inside the casing 2, so that the lead wires can be stably guided, vibrations, etc. There is an advantage that interference and trouble with the coil 6 can be avoided and the reliability of the operation can be improved.
- the attracted element 7 of the movable body Sm is positioned in the vicinity of the edge Eb of the magnet 8bp (and 8bq), and the magnetism of the magnet 8bp (and 8bq).
- the sucked child 7 is sucked by the suction force, and the restriction stopper portion 13b comes into contact with the inner surface of the casing 2 and stops.
- the characteristic line indicated by To indicates the magnitude of the output torque with respect to the turning angle (turning range Zm) of the movable body portion Sm at the time of non-energization.
- the output torque at the time of stoppage when not energized is about 0.02 [Nm].
- the characteristic line indicated by Tor is the same characteristic line when the rotary solenoid shown in Patent Document 1 has the same dimensions as the rotary solenoid 1 according to this embodiment.
- the direction of the magnetic force line between the magnet 8ap and the magnet 8aq is a direction from the magnet 8aq to the magnet 8ap
- the direction of the magnetic force line between the magnet 8bp and the magnet 8bq is the opposite direction between the magnet 8ap and the magnet 8aq.
- the direction is from 8 bp to the magnet 8bq.
- FIG. 10 shows a response waveform of the magnitude of the current Ii [A] with respect to the time [sec] from the start of energization.
- Ir [A] indicates a similar response waveform when the rotary solenoid shown in Patent Document 1 has the same dimensions as the rotary solenoid 1 according to this embodiment.
- the inductance of the coil 6 proportional to the magnetic permeability in the inner space of the coil 6. Becomes a slight size of several mH.
- the current rises to the saturation current almost instantaneously, and extremely high responsiveness can be realized.
- the overall weight of the movable body Sm is drastically reduced, high response and output torque can be ensured, which can greatly contribute to improvement in high-speed operation and productivity in the equipment used.
- FIG. 11 shows two characteristic lines Ts and Tm with different specifications of the coil 6.
- Ts and Tm both indicate the magnitude of the output torque with respect to the rotation angle of the movable body Sm when energized.
- the specification of the exemplified coil 6 is as follows. Wire diameter Number of turns Winding resistance Current Voltage AT [ ⁇ ] [T] [ ⁇ ] [A] [V] Ts: 0.12 648 45 0.53 24 345.6 Tm: 0.14 460 21 1.14 24 525.7
- the characteristic lines indicated by Tsr and Tmr in FIG. 11 are similar characteristic lines when the rotary solenoid shown in Patent Document 1 has the same dimensions as the rotary solenoid 1 according to the present embodiment. That is, it means that the outer size, current, and voltage of the rotary solenoid at Tsr are set to be the same as Ts, and the outer size, current, and voltage of the rotary solenoid at Tmr are set to be the same as Tm.
- the fixed body portion Sc is provided with the two magnet portions 8a and 8b arranged correspondingly, the heavy magnets 8ap, 8bp, 8aq, and 8bq are fixed on the case side. Since the coil 6 is fixed to the inner surfaces 2p and 2q of the groove 2 and the relatively light weight coil 6 is supported on the rotating shaft 4 on the movable side, the overall weight of the movable body portion Sm can be drastically reduced, and high responsiveness is achieved. Output torque can be secured. In addition, since there is no other than the attracted child 7 having a small cross-sectional area in the inner space of the coil 6, the inductance of the coil 6 is slightly large, and when the drive voltage is applied, the current is almost instantaneously applied.
- magnets 8ap, 8bp, 8aq, 8bq are arranged on the inner surface of the casing 2 facing the axial direction Fs end of the coil 6 supported by the rotating shaft 4, and an arrangement space for the inner surfaces 2p, 2q of the casing 2 is provided. Since the size of the magnets 8ap, 8bp, 8aq, and 8bq can be increased as long as it is allowed, the overall size of the rotary solenoid 1 can be reduced while ensuring the necessary performance.
- the modified embodiment shown in FIG. 12 is the same as the embodiment shown in FIG. 3 except that the fuse 31 is connected to one lead wire 11t arranged inside the lead wire cover 17c. is there. Therefore, other configurations are the same as those of the embodiment shown in FIG. As described above, since there is a space below the magnets 8ap, it can be used for routing the lead wires 11s and 11t, and can be used for disposing various accessory elements and circuits (such as correction elements) as necessary. can do.
- the lead-out leads 11s and 11t and the regulation stoppers 13a and 13b are different.
- the FPC (flexible printed circuit board) 32 is used when configuring the lead wires 11s and 11t.
- Reference numeral 33 denotes a connector for connecting the FPC 32 and an external lead wire (11s, 11t).
- the regulation stopper portions 13 a and 13 b are brought into contact with the inner surface located on the side surface of the casing 2, but the regulation stopper portions 13 a and 13 b according to the modified embodiment have the formation positions. It is changed so as to be brought into contact with the inner surfaces of the upper surface portions 2ma and 2mb of the casing 2. Any of them can have the same function as that of the embodiment shown in FIG.
- FIG. 14 and FIG. 15 is a modification of the magnet portions 8a and 8b. That is, in the embodiment shown in FIG. 2, two sets of magnet portions 8a and 8b are configured by a pair of magnets 8ap and 8aq and 8bp and 8bq, respectively, and inner surfaces 2p and 2q located on both sides of the movable body portion Sm, respectively. By fixing, the movable body part Sm is fixed so as to be sandwiched from both sides, but in the modified embodiment shown in FIG. 14, the magnets 8ap and 8bp are fixed only to the inner surface 2p on one side.
- FIG. 15 shows a modification of FIG.
- the inner surface 2 q on the other side facing the inner surface 2 p on one side of the casing 2 protrudes from the inner surface 2 q on the other side, and the magnets 8 ap, Magnetic flux collecting portions 14a and 14b facing 8 bp are provided.
- the magnetic flux density which passes the coil 6 can be raised more by the convergence effect
- FIGS. 14 and 15 are the same as those in the embodiment shown in FIGS.
- the same parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, the configuration thereof is clarified, and detailed description thereof is omitted.
- FIGS. 16 to 20 shows a modified form of the holding block unit 5, A modified form in which an internal frame portion 17 is provided inside the casing 2 is shown.
- the overall basic configuration is a type in which the magnets 8ap and 8bp shown in FIGS. 14 and 15 are arranged only on the inner surface of one side.
- the holding block portion 5 is obtained by fixing a printed wiring board 5p on one side of the holding block portion 5, and when the holding block portion 5 is formed of a synthetic resin material.
- the holding block portion 5 and the printed wiring board 5p can be integrally formed by insert molding.
- the printed wiring board 5p is provided with winding-side land portions 21s and 21t at positions where the winding ends 6s and 6t of the coil 6 are easily connected on the board surface.
- the lead-out land portions 22s and 22t for connecting 11t are provided in positions in the left-right direction and as far apart as possible.
- a conductive pattern portion 23s is provided between the winding-side land portion 21s and the lead-out land portion 22s to constitute the circuit wiring portion 5ps
- a conductive pattern portion 23t is provided between the winding-side land portion 21t and the lead-out land portion 22t.
- the winding ends 6s and 6t of the coil 6 can be connected to the winding-side land portions 21s and 21t by soldering or the like, and the pair of lead-out lead wires 11s and 11t are soldered to the lead-side land portions 22s and 22t, respectively. Can be connected by attaching. Therefore, if such a printed wiring board 5p is provided, both the winding ends 6s and 6t of the coil 6 and the pair of lead wires 11s and 11t can be fixed on the printed wiring board 5p. , 6t and the pair of lead wires 11s, 11t can be easily and reliably connected.
- the lead positions of the pair of lead wires 11 s and 11 t are set by the circuit wiring portions 5 ps and 5 pt, and the lead wires 11 s leading around the inside of the casing 2 by separating the pair of lead positions as much as possible. Since the radius of curvature at the curved portion of 11t can be increased, the durability of the lead wires 11s and 11t and the connection portion with respect to repetitive rotational displacement of the movable body portion Sm can be further increased. Furthermore, the fixed fixing of the connection part can improve the fixing strength and durability against vibrations and the like, and even when the holding block portion 5 and the printed wiring board 5p are integrally formed by insert molding or the like, stability during molding is ensured. There is an advantage that good molding can be performed by securing the property.
- the internal frame portion 17 is integrally formed of a synthetic resin material to form a rectangular frame shape.
- the shape of the outer surface is selected so that it can be positioned and disposed (fitted) inside the housing 2m in the casing 2, as shown in FIG.
- a lead wire cover 17c that guides the lead wires 11s and 11t is formed using the lower frame member and the left and right frame members of the inner frame portion 17.
- the lead wire cover 17c has the same function as the lead wire cover 17c shown in FIG.
- a part of the inner frame portion 17 is also used as the lead wire cover 17c, and the lead position of the lead wires 11s and 11t arranged inside the casing 2 can be regulated, so that the inner frame portion 17 can be guided stably. Interference with the coil 6 due to vibration or the like and trouble can be avoided, and the basic effect that the reliability of operation can be enhanced can be enjoyed.
- the position restriction corresponding to the both end positions Xa and Xb of the turning range Zm by contacting the restriction stopper portions 13a and 13b in the holding block portion 5 is achieved.
- the block restricting portions 18a and 18b to be performed are integrally formed. If such block restricting portions 18a and 18b are integrally formed, as shown in FIG. 19, the displacement of the holding block portion 5 is restricted by the collision with the inner frame portion 17, so the shape of the inner frame portion 17 and By selecting the material, there is an advantage that the bounce can be reduced and the noise can be reduced by absorbing the impact at the time of collision.
- one bearing portion 3r in the pair of bearing portions 3f and 3r is integrally formed. If comprised in this way, since a part of internal frame part 17 can be combined with the bearing part 3r, the separate bearing part 3r becomes unnecessary. This can contribute to cost reduction and improvement in manufacturability by reducing the number of parts, and can accurately position the bearing portion 3r with respect to other functional parts (for example, the block restriction portions 18a and 18b). There are advantages.
- the same parts as those in FIGS. 1 to 15 are denoted by the same reference numerals, the configuration thereof is clarified, and detailed description thereof is omitted.
- the single coil 6 may comprise as the coil 6 by combining two or more coils.
- a pair of lead wires connected to both ends 6s and 6t of the coil 6 and arranged in the casing 2 with the length selected to allow the displacement of the movable body Sm in the turning range Zm.
- the casing 2 is provided with connecting terminal portions penetrating the front and back, and the winding ends 6s and 6t are connected to the connecting terminal portion from the inside of the casing 2.
- other connection forms such as connecting the lead wires 11s and 11t from the outside are not excluded.
- the restriction stopper portions 13a and 13b may be provided separately or provided on the rotating shaft 4 protruding outside the casing 2.
- the case is not excluded.
- the magnets 8ap, 8bp, 8aq, 8bq are attracted and fixed to the inner surfaces 2p, 2q of the casing 2 and are positioned by the three positioning protrusions 15 formed integrally with the inner surfaces 2p, 2q of the casing 2.
- one positioning convex part 15 formed in the rectangular frame shape may be sufficient, and the case where two or four or more positioning convex parts 15 ... are provided is not excluded.
- the rotary solenoid according to the present invention performs two-position switching in various devices having various switching functions such as a sorting function for money and banknotes, a sorting function for postal items, a conveyance path switching function for printed matter, and an optical path switching function. It can be used as a switching actuator.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
さらに、被吸引子7の固定位置を選定するに際しては、図6(図9)に示すように、可動体部Smの旋回範囲Zmの両端位置Xa,Xbで、中心位置7cがマグネット8ap,8bp…のエッジ部Ea,Eb…の位置に対して旋回方向Frにおける所定範囲Zsに位置するように選定する。例示の場合、所定範囲Zsは被吸引子7の直径寸法とほぼ同じである。このように選定すれば、非通電時であっても自己保持力を作用させることができるため、可動体部Smを両端位置Xa,Xbで停止させることができるとともに、被吸引子7のサイズを小さくし、通電時(移動開始時)に対する影響をより少なくした場合であっても確実に停止させることができる。 In the case of the example (FIG. 1), if the diameter of the attracted
Further, when selecting the fixed position of the attracted
線径 巻数 巻線抵抗 電流 電圧 AT
〔φ〕 〔T〕 〔Ω〕 〔A〕 〔V〕
Ts: 0.12 648 45 0.53 24 345.6
Tm: 0.14 460 21 1.14 24 525.7 FIG. 11 shows two characteristic lines Ts and Tm with different specifications of the
Wire diameter Number of turns Winding resistance Current Voltage AT
[Φ] [T] [Ω] [A] [V]
Ts: 0.12 648 45 0.53 24 345.6
Tm: 0.14 460 21 1.14 24 525.7
ケーシング2の内部に、内部フレーム部17を設けた変更形態を示す。なお、全体の基本構成は、図14及び図15に示したマグネット8ap及び8bpを片側の内面にのみ配したタイプとなる。 The modified embodiment shown in FIGS. 16 to 20 shows a modified form of the holding
A modified form in which an
Claims (16)
- 前後に位置する一対の軸受部を設けたケーシングを有する固定体部及び前記一対の軸受部により回動自在に支持される回動シャフトを有する可動体部を備えるロータリソレノイドであって、保持ブロック部に保持されたコイルと、前記保持ブロック部に固定され、かつ前記コイルの軸心線に対して平行に並べて配した前記回動シャフトと、前記保持ブロック部の所定位置に固定した磁性材により形成した被吸引子とを設けてなる前記可動体部を備えるとともに、磁性材により形成したケーシングと、このケーシングの内面に固定し、かつ前記コイルの軸方向端部に対向して配するとともに、前記可動体部の旋回範囲の両端位置に対応して配した二組のマグネット部とを設けてなる前記固定体部を備えることを特徴とするロータリソレノイド。 A rotary solenoid comprising a fixed body portion having a casing provided with a pair of bearing portions positioned at the front and rear, and a movable body portion having a rotating shaft that is rotatably supported by the pair of bearing portions. Formed by a coil held on the holding block, the rotating shaft fixed to the holding block and arranged in parallel to the axis of the coil, and a magnetic material fixed to a predetermined position of the holding block The movable body portion provided with the attracted child, a casing formed of a magnetic material, and fixed to the inner surface of the casing, and disposed opposite to the axial end of the coil, and A rotary solenoid comprising the fixed body portion provided with two sets of magnet portions arranged corresponding to both end positions of the turning range of the movable body portion.
- 前記可動体部は、単一のコイルを備えるとともに、当該コイルにおける巻線両端に接続し、かつ長さを前記旋回範囲における前記可動体部の変位を許容する長さに選定して前記ケーシングの内部に配した一対の導出リード線を備えることを特徴とする請求項1記載のロータリソレノイド。 The movable body portion includes a single coil, is connected to both ends of the winding of the coil, and the length is selected to allow the displacement of the movable body portion in the turning range. The rotary solenoid according to claim 1, further comprising a pair of lead wires arranged inside.
- 前記保持ブロック部は、前記回動シャフトから見て前記コイルに対する180〔°〕反対側の部位に、前記導出リード線を保持する保持スリット部を設けてなることを特徴とする請求項2記載のロータリソレノイド。 The holding block portion is provided with a holding slit portion for holding the lead-out lead wire at a site opposite to the coil by 180 [°] when viewed from the rotating shaft. Rotary solenoid.
- 前記保持ブロック部は、この保持ブロック部の片面に固定し、かつ前記コイルの巻線両端と前記一対の導出リード線を接続する回路配線部を有するプリント配線基板を備えることを特徴とする請求項2記載のロータリソレノイド。 The said holding block part is equipped with the printed wiring board which has a circuit wiring part which fixes to the single side | surface of this holding block part, and connects both ends of the coil | winding of the said coil, and a pair of said lead-out lead wire, It is characterized by the above-mentioned. The rotary solenoid according to 2.
- 前記保持ブロック部は、前記ケーシングの内面に当接して前記旋回範囲の両端位置に対応した位置規制を行う規制ストッパ部を有することを特徴とする請求項1記載のロータリソレノイド。 2. The rotary solenoid according to claim 1, wherein the holding block part has a restriction stopper part that makes contact with the inner surface of the casing and performs position restriction corresponding to both end positions of the turning range.
- 前記マグネット部は、前記コイルの軸方向一端部に対向する、前記ケーシングの片側の内面に配した単一のマグネットにより構成することを特徴とする請求項1記載のロータリソレノイド。 The rotary solenoid according to claim 1, wherein the magnet portion is constituted by a single magnet disposed on an inner surface on one side of the casing, facing one end portion in the axial direction of the coil.
- 前記ケーシングの前記片側の内面に対向する他側の内面には、当該他側の内面から突出し、前記各マグネットに対向する磁束収集部をそれぞれ設けることを特徴とする請求項6記載のロータリソレノイド。 7. The rotary solenoid according to claim 6, wherein a magnetic flux collecting part that protrudes from the inner surface of the other side and faces the magnets is provided on the inner surface of the casing facing the inner surface of the one side.
- 前記マグネット部は、前記コイルの軸方向両端部にそれぞれ対向する、前記ケーシングの相対向する両側の内面に配した一対のマグネットにより構成することを特徴とする請求項1記載のロータリソレノイド。 The rotary solenoid according to claim 1, wherein the magnet part is constituted by a pair of magnets arranged on inner surfaces of opposite sides of the casing, which are opposed to both ends in the axial direction of the coil.
- 前記マグネットは、前記ケーシングの内面に吸着固定するとともに、前記ケーシングの内面に一体形成した一又は二以上の位置決め凸部により位置決めすることを特徴とする請求項5~8のいずれかに記載のロータリソレノイド。 The rotary according to any one of claims 5 to 8, wherein the magnet is fixed to the inner surface of the casing by suction and is positioned by one or more positioning protrusions integrally formed on the inner surface of the casing. solenoid.
- 前記被吸引子は、前記コイルの内側空間内であって、かつ当該コイルの中央位置よりも前記回動シャフト側に配することを特徴とする請求項1記載のロータリソレノイド。 The rotary solenoid according to claim 1, wherein the attracted child is disposed in an inner space of the coil and closer to the rotating shaft than a central position of the coil.
- 前記被吸引子は、前記一対のマグネットにおける一方のマグネットに対する距離と他方のマグネットに対する距離を異ならせて配することを特徴とする請求項8記載のロータリソレノイド。 The rotary solenoid according to claim 8, wherein the attracted child is arranged such that a distance to one magnet of the pair of magnets is different from a distance to the other magnet.
- 前記被吸引子は、軸直角の断面積を、前記コイルの内側空間における軸直角の断面積に対して、0.1~10〔%〕の範囲に選定することを特徴とする請求項1記載のロータリソレノイド。 2. The suction element of claim 1, wherein a cross-sectional area perpendicular to the axis is selected in a range of 0.1 to 10% with respect to a cross-sectional area perpendicular to the axis in the inner space of the coil. Rotary solenoid.
- 前記被吸引子は、前記旋回範囲の両端位置で、中心位置が前記マグネットのエッジ部の位置に対して旋回方向における所定範囲に位置するように固定位置を選定することを特徴とする請求項6,8又は11記載のロータリソレノイド。 The fixed position is selected so that the attractant is positioned at a predetermined range in a turning direction with respect to a position of an edge portion of the magnet at both end positions of the turning range. , 8 or 11 Rotary solenoid.
- 前記固定体部は、前記ケーシングの内部に位置決めして配設し、かつ一体形成することにより、少なくとも前記導出リード線をガイドするリード線カバーを有する内部フレーム部を備えることを特徴とする請求項1記載のロータリソレノイド。 The fixed body portion includes an inner frame portion having a lead wire cover for guiding at least the lead-out lead wire by being positioned and disposed inside the casing and integrally formed. The rotary solenoid according to 1.
- 前記内部フレーム部は、前記保持ブロック部における規制ストッパ部に当接して前記旋回範囲の両端位置に対応した位置規制を行う左右一対のブロック規制部を一体に備えることを特徴とする請求項14記載のロータリソレノイド。 15. The inner frame portion integrally includes a pair of left and right block restricting portions that abut against a restricting stopper portion in the holding block portion and perform position restriction corresponding to both end positions of the turning range. Rotary solenoid.
- 前記内部フレーム部は、前記一対の軸受部における一方の軸受部を一体に備えることを特徴とする請求項14又は15記載のロータリソレノイド。 The rotary solenoid according to claim 14 or 15, wherein the inner frame portion is integrally provided with one bearing portion of the pair of bearing portions.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017537641A JP6802797B2 (en) | 2015-08-28 | 2016-07-19 | Rotary solenoid |
KR1020187007323A KR102057097B1 (en) | 2015-08-28 | 2016-07-19 | Rotary solenoid |
CN201680049184.8A CN108028592B (en) | 2015-08-28 | 2016-07-19 | Rotary solenoid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015169743 | 2015-08-28 | ||
JP2015-169743 | 2015-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017038283A1 true WO2017038283A1 (en) | 2017-03-09 |
Family
ID=58187109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/071174 WO2017038283A1 (en) | 2015-08-28 | 2016-07-19 | Rotary solenoid |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6802797B2 (en) |
KR (1) | KR102057097B1 (en) |
CN (1) | CN108028592B (en) |
WO (1) | WO2017038283A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102183674B1 (en) | 2018-04-17 | 2020-11-27 | 주식회사 엘지화학 | Elliptical polarizing plate and organic light emitting device |
CN110380523B (en) * | 2019-07-19 | 2023-01-20 | 上海交通大学 | Wireless energy supply device for in-vivo miniature diagnosis and treatment equipment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0232748A (en) * | 1988-07-21 | 1990-02-02 | Oki Electric Ind Co Ltd | Rotary actuator |
JPH07170712A (en) * | 1993-12-15 | 1995-07-04 | Sumitomo Special Metals Co Ltd | Actuator |
JP2001091981A (en) * | 1999-09-21 | 2001-04-06 | Nidec Copal Corp | Electromagnetic actuator for camera |
JP2002062107A (en) * | 2000-08-21 | 2002-02-28 | Nippon Densan Corp | Angular displacement driving device |
JP2014022703A (en) * | 2012-07-24 | 2014-02-03 | Takano Co Ltd | Rotary solenoid |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103370860B (en) * | 2011-02-17 | 2016-08-10 | 日本电产伺服有限公司 | Rotary solenoid |
-
2016
- 2016-07-19 WO PCT/JP2016/071174 patent/WO2017038283A1/en active Application Filing
- 2016-07-19 JP JP2017537641A patent/JP6802797B2/en active Active
- 2016-07-19 KR KR1020187007323A patent/KR102057097B1/en active IP Right Grant
- 2016-07-19 CN CN201680049184.8A patent/CN108028592B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0232748A (en) * | 1988-07-21 | 1990-02-02 | Oki Electric Ind Co Ltd | Rotary actuator |
JPH07170712A (en) * | 1993-12-15 | 1995-07-04 | Sumitomo Special Metals Co Ltd | Actuator |
JP2001091981A (en) * | 1999-09-21 | 2001-04-06 | Nidec Copal Corp | Electromagnetic actuator for camera |
JP2002062107A (en) * | 2000-08-21 | 2002-02-28 | Nippon Densan Corp | Angular displacement driving device |
JP2014022703A (en) * | 2012-07-24 | 2014-02-03 | Takano Co Ltd | Rotary solenoid |
Also Published As
Publication number | Publication date |
---|---|
CN108028592B (en) | 2019-11-29 |
CN108028592A (en) | 2018-05-11 |
JP6802797B2 (en) | 2020-12-23 |
JPWO2017038283A1 (en) | 2018-06-14 |
KR102057097B1 (en) | 2019-12-18 |
KR20180044318A (en) | 2018-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5963641B2 (en) | Lens drive device | |
WO2017038283A1 (en) | Rotary solenoid | |
JP6857092B2 (en) | Electromagnetic relay | |
US5731642A (en) | Magnetic circuit structure in rotary actuator | |
US9733547B2 (en) | Blade driving device and optical apparatus | |
CN105759391A (en) | Lens driving device and camera module provided with lens driving device | |
JP2754296B2 (en) | Rotary actuator | |
JP6764932B2 (en) | Rotary solenoid | |
WO2010082515A1 (en) | Oscillation-type linear actuator | |
JP6897409B2 (en) | Electromagnetic relay | |
JP2011078151A (en) | Linear drive device and optical element drive device | |
WO2017199313A1 (en) | Rotary solenoid drive control method | |
JP2000182258A (en) | Optical head actuator | |
CN214753572U (en) | Coil rack of electromagnetic relay and electromagnetic relay | |
JPS5816429A (en) | Miniature polarized electromagnetic relay | |
JP2014116172A (en) | Coil bobbin and electromagnetic relay having the same | |
JPS59146125A (en) | Flat relay | |
JP3560530B2 (en) | Automatic mounting type coil | |
JP4325563B2 (en) | Polarized electromagnetic relay | |
JP2004095673A (en) | Choke coil | |
JP2022139489A (en) | linear actuator | |
JP2011135683A (en) | Armature core | |
JP2000175419A (en) | Rotary solenoid | |
JPH11340033A (en) | Rotary solenoid | |
JPH04311886A (en) | Optical head driving mechanism |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16841315 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017537641 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20187007323 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16841315 Country of ref document: EP Kind code of ref document: A1 |