JP2016134984A - Solenoid drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a current that is caused to flow when extracting a predetermined force.SOLUTION: A solenoid drive device 1 comprises: a first magnet part 10 in which a first permanent magnet 11, a first connection part (magnetic material) 12 and a second permanent magnet 13 are arranged side by side in this order while being in contact with each other and the same poles of the first permanent magnet 11 and the second permanent magnet 13 are opposite to each other while holding the first connection part 12 therebetween; a solenoid 50 which includes the first magnet part 10 and is configured by arranging a plurality of coils 51 side by side in an extension direction of the first magnet parts 10; and a second magnet part 20 in which a third permanent magnet 21, a second connection part (magnetic material) 22 and a fourth permanent magnet 23 are arranged side by side in this order while being in contact with each other and the same poles, different from the poles in the first magnet part 10, of the third permanent magnet 21 and the fourth permanent magnet 23 are opposite to each other while holding the second connection part 22 therebetween. The second magnet parts 20 hold the first magnet part 10 therebetween.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solenoid driving device.

  Related techniques are disclosed in Patent Documents 1 to 3. Patent Documents 1 to 3 include a column body provided with a magnetic body between two permanent magnets facing the same pole, and a coil that includes the column body and slides along the column body. An apparatus is disclosed. When a current in a predetermined direction is passed through the coil, a repulsive force that repels and an attractive force that attracts the coil and each permanent magnet are generated. As a result, the coil slides in a predetermined direction.

JP-A-9-163709 International Publication No. 2008/013053 JP 2010-114980 A

  According to the techniques disclosed in Patent Documents 1 to 3, a large amount of magnetic flux can be collected in the magnetic part between the permanent magnets. As a result, a relatively large force (force due to sliding movement of the coil) can be extracted with a relatively small current (current flowing through the coil). However, in the case of the techniques disclosed in Patent Documents 1 to 3, the effect is not sufficient. For this reason, the electric current passed in order to draw out predetermined force becomes large, and problems, such as a heat | fever, may generate | occur | produce.

  It is an object of the present invention to reduce the current that flows when a predetermined force is drawn.

According to the present invention,
The first permanent magnet, the first connection portion made of a magnetic material, and the second permanent magnet are arranged in contact with each other in this order, and the first permanent magnet and the second permanent magnet are the first permanent magnet. A first magnet part with the same polarity facing each other across the connecting part;
A solenoid that includes the first magnet part and is configured by arranging a plurality of coils along the extending direction of the first magnet part;
A third permanent magnet, a second connection portion made of a magnetic material, and a fourth permanent magnet are arranged in contact with each other in this order, and the third permanent magnet and the fourth permanent magnet are in contact with the second permanent magnet. A second magnet part having the same polarity different from the first magnet part across the connecting part,
Have
The second magnet portion is arranged in a line with the first magnet portion and sandwiching the first magnet portion,
The first permanent magnet and the third permanent magnet face each other, the first connection portion and the second connection portion face each other, and the second permanent magnet and the fourth permanent magnet face each other. A solenoid drive is provided.

  According to the present invention, it is possible to reduce the current that flows when a predetermined force is drawn.

It is an example of a part of upper surface schematic diagram of the solenoid drive device of this embodiment. It is an example of the one part side surface schematic diagram of the solenoid drive device of this embodiment. It is an example of the one part schematic perspective view of the solenoid drive device of this embodiment. It is an example of the schematic diagram which represented the solenoid and control part of this embodiment notionally. It is a figure for demonstrating the effect of the solenoid drive device of this embodiment. It is the figure which showed typically an example of the information which can be utilized with the solenoid drive device of this embodiment. It is an example of the perspective schematic diagram of the 1st magnet part of the solenoid drive device of this embodiment, the 2nd magnet part, and a solenoid.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

FIG. 1 is an example of a schematic top view of a part of the solenoid drive device 1 of the present embodiment.
FIG. 2 is an example of a schematic side view of a part of the solenoid drive device 1 of the present embodiment. FIG. 2 is a view of the solenoid drive device 1 of FIG. 1 observed from the bottom to the top (or from the top to the bottom). In addition, the transmission member 60, the control part 70, the conducting wire 71, the position detection part 80, and the marker 82 which are shown by FIG. 1 are abbreviate | omitted.
FIG. 3 is an example of a schematic perspective view of a part of the solenoid drive device 1 of the present embodiment. In addition, the solenoid 50, the transmission member 60, the control part 70, the conducting wire 71, the position detection part 80, and the marker 82 which are shown in FIG. 1 are omitted.

  As shown in FIG. 1, the solenoid driving device 1 includes a first magnet unit 10, a second magnet unit 20, a support unit 30, a support column 40, a solenoid 50, a transmission member 60, and a control unit 70. And a conductor 71, a position detector 80, and a marker 82.

  As shown in FIG. 3, the first magnet unit 10 includes a first permanent magnet 11, a first connection unit 12, and a second permanent magnet 13. The first permanent magnet 11, the first connecting portion 12, and the second permanent magnet 13 are arranged in contact with each other in this order. The first permanent magnet 11 and the second permanent magnet 13 have the same polarity (N poles or S poles) facing each other with the first connection part 12 in between.

  As a means for fixing the first permanent magnet 11, the first connection portion 12, and the second permanent magnet 13 to each other, for example, an adhesive (eg, an epoxy-based adhesive) may be used. Moreover, you may crimp-fix using the two support parts 30 which oppose, and the support | pillar 40 which fixes these, and may combine these. Although not shown, the support portion 30 and the support column 40 are fixed to each other using a well-known technique (for example, a bolt and a nut).

  The first permanent magnet 11 and the second permanent magnet 13 may be rare earth magnets such as Nd (neodymium) magnets, but are preferably non-conductive materials.

  The shape of the 1st permanent magnet 11 and the 2nd permanent magnet 13 will not be restrict | limited especially if it can insert in the internal space of the solenoid 50 wound in the spiral shape mentioned later, For example, a cylinder, a square pole, Other pillars may be used. In the case of the example of FIGS. 1 to 3, the shape of the first permanent magnet 11 and the second permanent magnet 13 is a plate-like square column. The configuration (type, shape, size, etc.) of the first permanent magnet 11 and the second permanent magnet 13 may be the same or different.

  The first connection portion 12 is made of a magnetic material. For example, the 1st connection part 12 is comprised with ferrite, such as MnZn, and a high magnetic permeability soft magnetic body. The shape of the first connecting portion 12 is not particularly limited as long as it can be inserted into the internal space of a solenoid 50 wound in a spiral shape, which will be described later. Also good.

  The first permanent magnet 11, the first connecting portion 12, and the second permanent magnet 13 may be flush with the side surfaces. In the case of the example shown in FIGS. 1 to 3, the first permanent magnet 11, the first connection portion 12, and the second permanent magnet 13 are flush with each other to form a plate-like square column. .

  If there is unevenness on the side surface of the first magnet unit 10, the solenoid 50 may be caught by the unevenness when the solenoid 50 described later slides along the extending direction of the first magnet unit 10. Such inconvenience can be avoided by configuring the side surfaces of the first permanent magnet 11, the first connection portion 12, and the second permanent magnet 13 to be flush with each other.

  The extending direction of the first magnet portion 10 is a direction connecting the first permanent magnet 11, the first connecting portion 12, and the second permanent magnet 13, and in the case of the example of FIGS. , In the left-right direction.

  The length L1 of the first permanent magnet 11 and the length L3 of the second permanent magnet 13 in the extending direction of the first magnet unit 10 are, for example, about 10 cm. The length L2 of the first connection part 12 in the direction is, for example, about 1 cm. And the length of the 1st magnet part 10 in the direction concerned is about 20 cm, for example. Note that the values of L1 and L3 may be the same or different.

  As shown in FIGS. 1 to 3, the second magnet unit 20 includes a third permanent magnet 21, a second connection unit 22, and a fourth permanent magnet 23. The third permanent magnet 21, the second connecting portion 22, and the fourth permanent magnet 23 are arranged in contact with each other in this order. The third permanent magnet 21 and the fourth permanent magnet 23 are opposed to the same polarity (S poles or N poles) different from the first magnet part 10 with the second connection part 22 in between. .

  For example, when the 1st permanent magnet 11 of the 1st magnet part 10 and the 1st connection part 12 have opposed N poles, the 3rd permanent magnet 21 of the 2nd magnet part 20 and the 4th The permanent magnets 23 face each other at the south poles. On the other hand, when the 1st permanent magnet 11 of the 1st magnet part 10 and the 1st connection part 12 have opposed S poles, the 3rd permanent magnet 21 of the 2nd magnet part 20 and the 4th The permanent magnets 23 are opposed to each other with N poles.

  As a means for fixing the third permanent magnet 21, the second connection portion 22, and the fourth permanent magnet 23 to each other, for example, an epoxy adhesive may be used. Moreover, you may crimp-fix using the two support parts 30 which oppose, and the support | pillar 40 which fixes these, and may combine these.

  The third permanent magnet 21 and the fourth permanent magnet 23 may be rare earth magnets such as Nd (neodymium) magnets, but are preferably non-conductive materials.

  The shapes of the third permanent magnet 21 and the fourth permanent magnet 23 are not particularly limited, and may be, for example, a cylinder, a quadrangular column, another column, or the like. In the case of the example of FIGS. 1 to 3, the shapes of the third permanent magnet 21 and the fourth permanent magnet 23 are plate-like square pillars. The configuration (type, shape, size, etc.) of the third permanent magnet 21 and the fourth permanent magnet 23 may be the same or different. The configurations (type, shape, size, etc.) of the first to fourth permanent magnets 11, 13, 21, and 23 may be the same or different from each other.

  The second connection portion 22 is made of a magnetic material. For example, the second connection portion 22 is made of ferrite such as MnZn or a high magnetic permeability soft magnetic material.

  The third permanent magnet 21, the second connection portion 22, and the fourth permanent magnet 23 may have the same side surface. In the case of the example shown in FIGS. 1 to 3, the third permanent magnet 21, the second connection portion 22, and the fourth permanent magnet 23 are flush with each other to form a plate-like square column. . The shape and size of the first magnet unit 10 and the shape and size of the second magnet unit 20 may be the same or different. In the case of the example shown in FIGS. 1 to 3, the shape and size of the first magnet portion 10 are the same as the shape and size of the second magnet portion 20, and the shape is a plate-like square column. .

  The length L1 of the third permanent magnet 21 and the length L3 of the fourth permanent magnet 23 in the extending direction of the second magnet unit 20 are, for example, about 10 cm. The length L2 of the second connection portion 22 in the direction is, for example, about 1 cm. And the length of the 2nd magnet part 20 in the direction concerned is about 20 cm, for example. Note that the values of L1 and L3 may be the same or different.

  The extending direction of the second magnet portion 20 is a direction connecting the third permanent magnet 21, the second connecting portion 22, and the fourth permanent magnet 23. In the case of the example of FIGS. , In the left-right direction.

  The second magnet unit 20 is arranged in line with the first magnet unit 10 and at a position sandwiching the first magnet unit 10. The first permanent magnet 11 and the third permanent magnet 21 face each other, the first connection portion 12 and the second connection portion 22 face each other, and the second permanent magnet 13 and the fourth permanent magnet 23 face each other. Opposite.

  The phrase “the first magnet unit 10 and the second magnet unit 20 are aligned” means that the extending direction of the first magnet unit 10 and the extending direction of the second magnet unit 20 are substantially parallel. Means that. The distance between the 1st magnet part 10 and the 2nd magnet part 20 is about 5 mm, for example.

  “The first permanent magnet 11 and the third permanent magnet 21 face each other” means that the first magnet portion 10 and the second magnet portion 10 are moved from the second magnet portion 20 toward the first magnet portion 10. When observed in a direction substantially perpendicular to the extending direction of the magnet portion 20 (when the solenoid driving device 1 in FIG. 2 is observed in a direction perpendicular to the paper surface), at least a part of the first permanent magnet 11 and the third This means a state in which at least a part of the permanent magnet 21 overlaps.

  “The first connecting portion 12 and the second connecting portion 22 are facing each other” means that the first magnet portion 10 and the second magnet portion 10 are moved from the second magnet portion 20 toward the first magnet portion 10. When observed in a direction substantially perpendicular to the extending direction of the magnet part 20 (when the solenoid driving device 1 in FIG. 2 is observed in a direction perpendicular to the paper surface), at least a part of the first connection part 12 and the second This means a state where at least a part of the connecting portion 22 overlaps.

  “The second permanent magnet 13 and the fourth permanent magnet 23 face each other” means that the first magnet portion 10 and the second magnet portion 10 are moved from the second magnet portion 20 toward the first magnet portion 10. When observed in a direction substantially perpendicular to the extending direction of the magnet portion 20 (when the solenoid drive device 1 in FIG. 2 is observed in a direction perpendicular to the paper surface), at least a part of the second permanent magnet 13 and the fourth This means a state in which at least a part of the permanent magnet 23 overlaps.

  Next, a state where “the second magnet unit 20 sandwiches the first magnet unit 10” will be described. As an embodiment for realizing the state, (1) a form in which the first magnet part 10 is sandwiched between a plurality of second magnet parts 20 separated from each other, and (2) an extension along the outer periphery of the first magnet part 10 There is a form in which the first magnet unit 10 is sandwiched (enclosed) by the cylindrical second magnet unit 20. The second magnet unit 20 sandwiching the first magnet unit 10 means a state in which the first magnet unit 10 exists on a straight line connecting any two points of the second magnet unit 20.

  In the case of the example shown in FIGS. 1 to 3, the solenoid driving device 1 has two second magnet parts 20 separated from each other. The two plate-like second magnet portions 20 are arranged so that the principal surfaces face each other. A plate-like first magnet unit 10 is arranged between the two second magnet units 20. In the first magnet unit 10, each of the two main surfaces in a front / back relationship is opposed to the main surface of the two second magnet units 20.

  In addition, the number of the 2nd magnet parts 20 is not limited to 2 illustrated, Three or more may be sufficient. For example, M (M is 3 or more) plate-like second magnet parts 20 may be arranged around the first magnet part 10 and the first magnet part 10 may be sandwiched from the M direction.

  As another example, the second magnet unit 20 may be a cylindrical body that extends along the outer periphery of the first magnet unit 10. FIG. 7 (1) shows an example of a schematic diagram of the second magnet unit 20 of the example, FIG. 7 (2) shows an example of a schematic diagram of the first magnet unit 10 of the example, and FIG. An example of the schematic diagram of the solenoid 50 of the example is shown. The second magnet unit 20 in FIG. 7A and the solenoid 50 in FIG. 7C are cylindrical cylindrical bodies, and the first magnet unit 10 in FIG. 7B is a columnar body. The solenoid 50 includes the first magnet unit 10. The second magnet unit 20 includes the first magnet unit 10 and the solenoid 50. The cylindrical shape of the second magnet unit 20 and the solenoid 50 may be a cylinder, a square tube, or other shapes.

  As shown in FIG. 1, the solenoid 50 is configured by arranging a plurality of coils 51 along the extending direction of the first magnet unit 10. In the illustrated example, the solenoid 50 is configured by six coils 51, but the number is not limited to this. The coil 51 is composed of a conductive wire (a copper wire, a copper aluminum clad wire or the like) wound in a spiral shape. The plurality of coils 51 are connected by any means. That is, when the solenoid 50 slides, the plurality of coils 51 slide together as a whole.

  The length C1 of one coil 51 in the extending direction of the first magnet unit 10 is about 2.2 cm. The length C2 of the solenoid 50 in the direction is not less than L1 and not less than L3, preferably not less than (L1 + L2) and not less than (L3 + L2). For example, C2 is about 11 cm.

  The solenoid 50 spirals around the first magnet unit 10. That is, the solenoid 50 includes the first magnet unit 10. The solenoid 50 does not include the second magnet unit 20. A certain gap is provided between the solenoid 50 and the first magnet unit 10. The solenoid 50 can be slid within the range from one end to the other end of the first magnet unit 10 (within the range sandwiched between the two support units 30) while the first magnet unit 10 is included. It is.

  A transmission member 60 is connected to the solenoid 50. The transmission member 60 is, for example, a wire made of a material such as stainless steel, a string made of a material such as nylon, or the like. The transmission member 60 passes through the through hole 31 (see FIG. 3) provided in the support portion 30.

  When a current in a predetermined direction is passed through the solenoid 50, a repulsive force repelling or attracting attracting force between the solenoid 50 and each of the plurality of permanent magnets (first to fourth permanent magnets 11, 13, 21, and 23). Get up. As a result, the solenoid 50 slides in a predetermined direction. When a current is passed in the reverse direction, the solenoid 50 slides in the reverse direction. Along with this sliding movement, the transmission member 60 also slides. The solenoid drive device 1 according to the present embodiment takes out a linear force by which the solenoid 50 slides through the transmission member 60.

  The solenoid 50 may be included in a coil case (not shown). The coil case protects the solenoid 50 from external factors and collisions. The coil case can be made of, for example, a thin and hard resin (eg, vinyl chloride or polyethylene).

The support unit 30 and the support column 40 are provided to fix the first magnet unit 10 and the second magnet unit 20. The support 30 and the support column 40 are made of, for example, a material having a relative magnetic permeability (μ _s = μ / μ ₀ , μ ₀ is a vacuum magnetic permeability) of 600 or more (eg, ferrite such as MnZn, iron, etc.) Is preferred. By configuring in this way, the magnetic force of the first magnet unit 10 and the second magnet unit 20 is a space surrounded by the support unit 30 and the support column 40, that is, the first magnet unit 10 and the second magnet unit. 20 and the solenoid 50 can be effectively confined in the existing space. As a result, a larger force (a force by which the solenoid 50 slides) can be extracted with a smaller current (a current that flows through the solenoid 50).

  The structure including the first magnet unit 10, the second magnet unit 20, the support unit 30, the support column 40, and the solenoid 50 may be housed in a housing (not shown).

  The casing has a shape and a size including the structure. For example, the casing may be a cylinder, a quadrangular prism, another prism, or the like. Moreover, you may utilize the two support parts 30 as a part of housing | casing.

The casing is preferably made of a material having a relative magnetic permeability (μ _s = μ / μ ₀ , μ ₀ is a vacuum magnetic permeability) of 600 or more (eg, ferrite such as MnZn, iron, etc.). By comprising in this way, the magnetic force of the 1st magnet part 10 and the 2nd magnet part 20 can be effectively confined in a housing | casing. As a result, a larger force (a force by which the solenoid 50 slides) can be extracted with a smaller current.

  Note that the housing does not necessarily need to be formed of one material, and may be configured by combining parts generated from a plurality of materials. For example, the cylindrical part which has a slit with a 1st material may be formed, and the joint part which covers the said slit with a 2nd material may be comprised. In addition, how to combine the parts produced | generated with each of several material is not limited to what was illustrated here, A various aspect can be selected. For example, the side surface of the housing may be configured by combining a plurality of arc-shaped columns formed of different materials. Thus, when it can be comprised with a several material, the housing | casing which optimized the balance of intensity | strength and weight can be implement | achieved by optimizing a combination, implement | achieving the shielding effect of magnetic flux.

  The position detection unit 80 detects the position of the solenoid 50, that is, the position in the sliding direction of the solenoid 50 that slides. For example, the position detection unit 80 specifies the coil 51 that faces the first connection unit 12.

  The “coil 51 facing the first connecting portion 12” is a case where the structure including the first magnet portion 10 and the solenoid 50 is observed in a direction substantially perpendicular to the extending direction of the first magnet portion 10 ( 1 when the solenoid drive device 1 of FIG. 1 is observed in a direction perpendicular to the paper surface) means at least a coil 51 that overlaps at least a part of the first connection part 12.

  The means for detecting the position of the solenoid 50 is not particularly limited, but an example will be described below. As an example, a form using a magnetic sensor having a switch that is turned on by a certain level of magnetism is conceivable. For example, as shown in FIG. 1, a magnet (marker 82) is attached to a predetermined position of the transmission member 60. Then, the movable range of the transmission member 60 that slides is limited by a guide member (not shown). For example, the transmission member 60 is inserted into a cylindrical body (guide member) fixed at a predetermined position. The cylindrical body is made of a material that transmits magnetism.

  In this case, when the solenoid 50 slides by a predetermined amount, the transmission member 60 slides within the cylindrical body by an amount corresponding to the predetermined amount. As a result, the marker 82 also slides in the cylindrical body by an amount corresponding to the amount that the solenoid 50 has moved.

  As shown in the figure, the position detection unit 80 includes a plurality of magnetic sensors (sensors 81) installed along an area where the marker 82 moves. When the distance between the sensor 81 and the marker 82 is a predetermined value or less, the switch is turned on by a certain amount of magnetism. By checking the relationship between the slide position of the solenoid 50 and the switch state of each of the plurality of sensors 81 at each slide position (which sensor 81 is turned on at each slide position), the switch is turned on in advance. The position of the solenoid 50 can be specified from the identification information of the sensor 81.

  FIG. 6 schematically shows an example of correspondence information used by the position detection unit 80. In the correspondence information, the identification information (ID) of each of the plurality of sensors 81 included in the position detection unit 80 is associated with the identification information (ID) of each of the plurality of coils 51 included in the solenoid 50. In the correspondence information, each sensor 81 and the coil 51 that faces the first connection portion 12 when each sensor 81 is ON are associated with each other. For example, when the sensor 81 whose switch is turned on is identified, the position detection unit 80 extracts the coil 51 associated with the identified sensor 81 with reference to the correspondence information. Then, the position detection unit 80 specifies the extracted coil 51 as the coil 51 facing the first connection unit 12.

  Note that the position detection method is not limited to this. For example, here, a magnet is proposed as the marker 82 and a magnetic sensor is proposed as the sensor 81, but other combinations of the marker 82 and the sensor 81 may be used based on a known technique. Further, the position where the marker 82 is installed is not limited to the transmission member 60, and may be installed in a coil case containing the solenoid 50.

  Based on the position of the solenoid 50, the control unit 70 individually controls the solenoid drive current that flows through each of the plurality of coils 51.

  FIG. 4 shows an example of a schematic diagram conceptually showing the solenoid 50 and the control unit 70. The solenoid 50 includes a plurality of coils 51 arranged side by side. A conductive wire 71 is connected to each of the plurality of coils 51.

  The control unit 70 includes a distributor 72 and a power source 73. The distributor 72 is connected to a conductive wire 71 connected to each of the plurality of coils 51. When the distributor 72 is supplied with power from the power source, the distributor 72 causes a current to flow through the predetermined coil 51 determined based on the position of the solenoid 50. Specifically, the distributor 72 passes a current through the coil 51 facing the first connection portion 12. The distributor 72 may further cause a current to flow through the coil 51 adjacent to the coil 51. The distributor 72 does not have to pass current through the other coils 51. The power source 73 may be configured to flow a ripple current.

  Next, the effect of this embodiment is demonstrated.

  According to the solenoid drive device 1 of the present embodiment, a magnetic flux flow as shown in FIG. 5 is formed by the synergistic effect of the first magnet unit 10 and the second magnet unit 20. Compared with the case of only the first magnet unit 10, more magnetic flux can be collected in the first connection unit 12. As a result, a larger force (force due to sliding movement of the solenoid 50) can be extracted with a smaller current (current flowing through the solenoid 50).

  Further, according to the solenoid drive device 1 of the present embodiment, a current is not always passed through the entire solenoid 50, but a part of the coils 51 (eg, the coil 51 facing the first connecting portion 12 and adjacent thereto). A current can be selectively passed only to the coil 51). That is, control is performed so that a current is selectively supplied to the coil 51 that is located in an area where the magnetic flux is concentrated and has a large contribution to generate the sliding movement force of the solenoid 50 and no current is supplied to the coil 51 that has a small contribution. can do. For this reason, consumption of unnecessary current can be suppressed. As a result, a larger force (force due to sliding movement of the solenoid 50) can be extracted with a smaller current (current flowing through the solenoid 50).

  Further, in the solenoid drive device 1 of the present embodiment, the second magnet unit 20 sandwiches the first magnet unit 10. For this reason, it can suppress that the magnetic field produced by the 1st magnet part 10 leaks out of the space pinched | interposed into the 2nd magnet part 20. FIG. For this reason, the magnetic field produced by the 1st magnet part 10 can be utilized for the sliding movement of the solenoid 50 efficiently and without waste. As a result, a larger force (force due to sliding movement of the solenoid 50) can be extracted with a smaller current (current flowing through the solenoid 50).

  Thus, the solenoid drive device 1 of the present embodiment that can reduce the current that is flowed to extract a predetermined force has good energy efficiency and is less likely to cause a problem of heat that is generated by flowing the current.

  In the case of the solenoid drive device 1 of the present embodiment, the solenoid 50 is slid from the state in contact with one support portion 30 to the state in contact with the other support portion 30 by flowing a current in a predetermined direction for a predetermined time or more. I can move. The distance of the slide movement can be secured, for example, about 10 cm. Thus, according to the solenoid drive device 1 of this embodiment, a long stroke force of about 10 cm can be taken out. Such a solenoid drive device 1 of this embodiment can be used as a drive device for a humanoid robot, for example. According to the solenoid drive device 1 of the present embodiment, it is possible to simulate the stretching motion of human muscles.

  Moreover, in the solenoid drive device 1 of the present embodiment, the solenoid 50 can be slid in two directions by switching the direction of current flowing through the solenoid 50. In addition, the solenoid drive device 1 may slide the solenoid 50 only in one direction by flowing current only in one direction without switching the current direction. In this case, the solenoid 50 is slid in the opposite direction by other means.

Hereinafter, examples of the reference form will be added.
1. The first permanent magnet, the first connection portion made of a magnetic material, and the second permanent magnet are arranged in contact with each other in this order, and the first permanent magnet and the second permanent magnet are the first permanent magnet. A first magnet part with the same polarity facing each other across the connecting part;
A solenoid that includes the first magnet part and is configured by arranging a plurality of coils along the extending direction of the first magnet part;
A third permanent magnet, a second connection portion made of a magnetic material, and a fourth permanent magnet are arranged in contact with each other in this order, and the third permanent magnet and the fourth permanent magnet are in contact with the second permanent magnet. A second magnet part having the same polarity different from the first magnet part across the connecting part,
Have
The second magnet portion is arranged in a line with the first magnet portion and sandwiching the first magnet portion,
The first permanent magnet and the third permanent magnet face each other, the first connection portion and the second connection portion face each other, and the second permanent magnet and the fourth permanent magnet face each other. Solenoid drive.
2. In the solenoid drive device according to 1,
A position detector for detecting the position of the solenoid;
Based on the position of the solenoid, a control unit that individually controls a solenoid driving current that flows through each of the plurality of coils;
A solenoid drive device further comprising:
3. In the solenoid drive device according to 2,
The said control part is a solenoid drive device which controls so that the said electric current may be sent through the said coil facing the said 1st connection part.

DESCRIPTION OF SYMBOLS 1 Solenoid drive device 10 1st magnet part 11 1st permanent magnet 12 1st connection part 13 2nd permanent magnet 20 2nd magnet part 21 3rd permanent magnet 22 2nd connection part 23 4th Permanent magnet 30 Support section 31 Through hole 40 Support column 50 Solenoid 51 Coil 60 Transmission member 70 Control section 71 Conductor 72 Distributor 73 Power supply 80 Position detection section 81 Sensor 82 Marker

According to the present invention,
The first permanent magnet, the first connection portion made of a magnetic material, and the second permanent magnet are arranged in contact with each other in this order, and the first permanent magnet and the second permanent magnet are the first permanent magnet. A first magnet part with the same polarity facing each other across the connecting part;
A solenoid that includes the first magnet part and is configured by arranging a plurality of coils along the extending direction of the first magnet part;
A third permanent magnet, a second connection portion made of a magnetic material, and a fourth permanent magnet are arranged in contact with each other in this order, and the third permanent magnet and the fourth permanent magnet are in contact with the second permanent magnet. A second magnet part having the same polarity different from the first magnet part across the connecting part,
Have
The second magnet portion is arranged in a line with the first magnet portion and sandwiching the first magnet portion,
The first permanent magnet and the third permanent magnet face each other, the first connection portion and the second connection portion face each other, and the second permanent magnet and the fourth permanent magnet face each other. and,
A solenoid driving device is provided in which a magnetic flux is linearly formed between the first connecting portion and the second connecting portion.

Claims (3)

The first permanent magnet, the first connection portion made of a magnetic material, and the second permanent magnet are arranged in contact with each other in this order, and the first permanent magnet and the second permanent magnet are the first permanent magnet. A first magnet part with the same polarity facing each other across the connecting part;
A solenoid that includes the first magnet part and is configured by arranging a plurality of coils along the extending direction of the first magnet part;
A third permanent magnet, a second connection portion made of a magnetic material, and a fourth permanent magnet are arranged in contact with each other in this order, and the third permanent magnet and the fourth permanent magnet are in contact with the second permanent magnet. A second magnet part having the same polarity different from the first magnet part across the connecting part,
Have
The second magnet portion is arranged in a line with the first magnet portion and sandwiching the first magnet portion,
The first permanent magnet and the third permanent magnet face each other, the first connection portion and the second connection portion face each other, and the second permanent magnet and the fourth permanent magnet face each other. Solenoid drive. In the solenoid drive device according to claim 1,
A position detector for detecting the position of the solenoid;
Based on the position of the solenoid, a control unit that individually controls a solenoid driving current that flows through each of the plurality of coils;
A solenoid drive device further comprising: In the solenoid drive device according to claim 2,
The said control part is a solenoid drive device which controls so that the said electric current may be sent through the said coil facing the said 1st connection part.

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