KR101130218B1 - Magnetic substance holding device combining permanent magnet with electromagnet - Google Patents

Abstract

PURPOSE: A magnetic body holding device having a permanent magnet and an electromagnet is provided to reduce manufacturing and maintenance costs by using simplified components. CONSTITUTION: A magnetic body holding device(100) having a permanent magnet and an electromagnet comprises a permanent magnet(110), a pole piece(120), a magnetizing material(130), a coil(140), and a controller. The N pole or the S pole of the permanent magnet is coupled to the pole piece. The pole piece has a holding surface. One end surface of the magnetizing material touches the pole piece. The coil surrounds the magnetizing material. The controller controls the magnetization of the magnetizing material by controlling currents flowing in the coil.

Description

Magnetic holding device combining permanent and electromagnets {MAGNETIC SUBSTANCE HOLDING DEVICE COMBINING PERMANENT MAGNET WITH ELECTROMAGNET}

The present invention relates to a magnetic holding device that combines a permanent magnet and an electromagnet, and more particularly, to a magnetic holding device that controls the magnetic flux flow by using an electromagnet to control the holding and release of the magnetic material.

Permanet magnet workholding devices are used to attach objects made of magnetic materials, such as iron, with magnetic force. Today, mold clamping in injection machines, mold clamping in press machines, chucks in machine tools It is widely used as an internal device attached to a back.

1 is a cross-sectional view of a conventional permanent magnet workholding device, which is disclosed in US Patent US4956625. Referring to Figure 1, the conventional magnetic holding device using a permanent magnet yoke (1), pole piece (Pole piece, 2), intermediate pole member (Intermediate pole member, 3), main permanent magnet (4), secondary permanent A magnet 5, a plurality of modules composed of a conductive wire 6 wound around the main permanent magnet 4 and a high-voltage power supply 7 and the like.

In the above configuration, the main permanent magnet 4 uses an alico magnet capable of magnetizing and demagnetizing by applying a high current to the wire wound around it. Alico magnets are known as magnets capable of magnetizing and demagnetizing at the lowest current of permanent magnets.

The holding device instantaneously applies a high current to the lead wire 6 wound around the main permanent magnet 4 positioned between the pole piece 2 and the bottom plate of the yoke 1 to thereby maintain the polarity of the main permanent magnet 4. By converting, the object 9, which is a magnetic body, is held (fixed) or released (fixed) by the magnetic force. The holding device requires a high current to change the polarity of the main permanent magnet 4 for holding and releasing the object 9.

Therefore, the holding device has a high risk of a safety accident, and the holding force is reduced due to incomplete magnetization due to hysteresis as the magnetization and demagnetization are repeated, and the durability is weak due to the heating of the coil. In addition, due to the large size of the module, it is difficult to miniaturize the structure, and the structure of the single structure and the high current supply device by the high current is complicated, the price is high, and the application range is limited.

An object of the present invention is to provide a magnetic holding device which can be applied to various fields due to its simple structure and low manufacturing cost and easy downsizing, and having a large holding force compared to the size.

In addition, an object of the present invention is to provide a magnetic holding device having a simple yet new structure that requires a power supply only when holding or releasing a magnetic material, and does not require a separate power supply when maintaining a holding state or a releasing state. have.

Magnetic material holding device according to an embodiment of the present invention, a permanent magnet; A pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface; Magnetic material disposed at one end thereof in contact with the pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device includes a permanent magnet coupled to the pole piece at one end of the magnetic material in contact with the pole piece. The current is applied to the coil so that a pole such as a pole is formed, and the magnetic body is held by flowing magnetic flux to a magnetic body in contact with the holding surface of the pole piece.

On the other hand, the magnetic holding device according to another embodiment of the present invention, a permanent magnet; A pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface; Magnetic material disposed at one end thereof in contact with the pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device includes a permanent magnet coupled to the pole piece at one end of the magnetic material in contact with the pole piece. The current is applied to the coil to form a pole different from the pole, and the magnetic flux flowing through the magnetic body held on the holding surface of the pole piece is controlled to release the magnetic body.

Magnetic material holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. A current is applied to the coil so that a pole, such as a pole of the permanent magnet, is formed, and the magnetic body is held by flowing magnetic flux to a magnetic body in contact with the holding surface of the first pole piece and the holding surface of the second pole piece. It is done.
Preferably, the control device is characterized in that the magnetic material is blocked on the holding surface of the first pole piece and the holding surface of the second pole piece after blocking the current applied to the coil.
The control device may further include applying a current to the coil such that a pole different from the pole of the permanent magnet coupled with the first pole piece is formed at one end surface of the magnetic material in contact with the first pole piece. It is characterized in that the holding of the magnetic body is released by removing the magnetic flux flowing in the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece.
Here, the control device is characterized in that the magnetic material blocks the current applied to the coil after the holding is released on the holding surface of the first pole piece and the holding surface of the second pole piece.

On the other hand, the magnetic holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held by the holding surface of the first pole piece and the holding surface of the second pole piece. The holding surface of the first pole piece is applied by applying a current to the coil such that a pole, such as a pole of the permanent magnet coupled to the first pole piece, is formed at one end of the magnetic material in contact with the first pole piece. And adding magnetic flux to the magnetic body held on the holding surface of the second pole piece to reinforce the holding of the magnetic body.

Magnetic material holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. A current is applied to the coil so that a pole, such as a pole of the first permanent magnet, is formed, and the magnetic body is held by flowing magnetic flux to a magnetic body in contact with the holding surface of the first pole piece and the holding surface of the second pole piece. It is characterized by.
Preferably, the control device is characterized in that the magnetic material is blocked on the holding surface of the first pole piece and the holding surface of the second pole piece after blocking the current applied to the coil.
In addition, the control device, by applying a current to the coil to form a pole different from the pole of the first permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece, The magnetic flux held by the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece is removed, thereby releasing the holding of the magnetic material.
Here, the control device is characterized in that the magnetic material blocks the current applied to the coil after the holding is released on the holding surface of the first pole piece and the holding surface of the second pole piece.

On the other hand, the magnetic holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held by the holding surface of the first pole piece and the holding surface of the second pole piece. When a current is applied to the coil such that a pole, such as a pole of the first permanent magnet, coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece. A magnetic flux is added to the magnetic body held on the holding surface and the holding surface of the second pole piece to reinforce the holding of the magnetic body.

Magnetic material holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. The current is applied to the coil so that a pole different from the pole of the permanent magnet is formed, and the magnetic flux flowing through the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece is controlled to hold the magnetic material. It characterized in that to release.

On the other hand, the magnetic holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. The current is applied to the coil so that a pole, such as the pole of the permanent magnet, is formed, and a magnetic flux is added to the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece to hold the magnetic material. It is characterized by strengthening.

Magnetic material holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece. After that, the current applied to the coil is cut off.

On the other hand, the magnetic holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. The magnetic material is controlled by applying a current to the coil so that a pole different from the pole of the first permanent magnet is formed, and controlling the magnetic flux flowing through the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece. It characterized in that the holding of the.

Magnetic material holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. The current is applied to the coil so that a pole, such as the pole of the first permanent magnet, is formed, and a magnetic flux is added to the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece, thereby It is characterized by strengthening the holding.

On the other hand, the magnetic holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece. After that, the current applied to the coil is cut off.

Magnetic material holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. A current is applied to the coil so that a pole, such as a pole of the permanent magnet, is formed, and the magnetic body is held by flowing magnetic flux to a magnetic body in contact with the holding surface of the first pole piece and the holding surface of the second pole piece. do.
Preferably, the control device is characterized in that the magnetic material is blocked on the holding surface of the first pole piece and the holding surface of the second pole piece after blocking the current applied to the coil.
The control device may further include applying a current to the coil such that a pole different from a pole of the permanent magnet coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece. The magnetic flux flowing through the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece is controlled to release the holding of the magnetic material.

On the other hand, the magnetic holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. The current is applied to the coil so that a pole, such as the pole of the permanent magnet, is formed, and a magnetic flux is added to the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece to hold the magnetic material. It is characterized by strengthening.

Magnetic material holding device according to another embodiment of the present invention, a permanent magnet; A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove; A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece; A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held by the holding surface of the first pole piece and the holding surface of the second pole piece. And holding a current of the first pole piece by applying a current to the coil such that a pole, such as a pole of the permanent magnet coupled to the first pole piece, is formed on one end surface of the magnetic material in contact with the first pole piece. A magnetic flux is added to the magnetic body held on the surface and the holding surface of the second pole piece to reinforce the holding of the magnetic body.

On the other hand, the magnetic holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface and an insertion groove; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device is coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. Holding the magnetic material by applying a current to the coil so that a pole, such as the pole of the first permanent magnet, is formed, by flowing a magnetic flux to a magnetic body in contact with the holding surface of the first pole piece and the holding surface of the second pole piece; It features.
Preferably, the control device is characterized in that the magnetic material is blocked on the holding surface of the first pole piece and the holding surface of the second pole piece after blocking the current applied to the coil.
In addition, the control device, by applying a current to the coil to form a pole different from the pole of the first permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece, The magnetic flux flowing through the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece is controlled to release the holding of the magnetic material.
Here, the control device is characterized in that the magnetic material blocks the current applied to the coil after the holding is released on the holding surface of the first pole piece and the holding surface of the second pole piece.

On the other hand, the magnetic holding device according to another embodiment of the present invention, the first permanent magnet and the second permanent magnet; A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface and an insertion groove; A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece; A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece; A coil surrounding the magnetic material; And a control device for controlling the magnetization of the magnetic material by controlling a current flowing through the coil, wherein the control device has a magnetic body held by the holding surface of the first pole piece and the holding surface of the second pole piece. When a current is applied to the coil such that a pole, such as a pole of the first permanent magnet, coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece. A magnetic flux is added to the magnetic body held on the holding surface and the holding surface of the second pole piece to reinforce the holding of the magnetic body.

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

Specific details of other embodiments are included in the detailed description and the drawings.

The present invention can implement the optimal holding force in the same area, it is easy to expand or reduce the size of the module according to the size of the interior of the device to be installed, lift, chuck, various locking devices, application machines, robots, etc. There is an effect that can be extended.

In addition, the present invention has a simple structure and simple components, easy to manufacture, low manufacturing cost, low power consumption, low maintenance cost, there is an effect that is safe and convenient to use.

In addition, the present invention is simple in structure and can be manufactured in a small size, the production cost is low compared to the performance, it can be operated at a low current, less failure occurs, and the reliability of the product can be increased, so that the effect can be applied to various fields have.

In addition, the present invention has the effect that it is possible to control the large magnetic flux flow in the magnetic holding device instantaneously and very easily with a low current by using an electromagnet.

1 is a cross-sectional view of a conventional permanent magnet work holding device.
2 and 3 are views for explaining the principle of holding and releasing holding of the magnetic material holding device according to the present invention.
4 to 6 is a view of the magnetic holding device having one permanent magnet and one pole piece according to the present invention.
7 to 10 are views of a magnetic holding device having one permanent magnet and two pole pieces according to the present invention.
11 to 14 are views of a magnetic holding device having two permanent magnets and two pole pieces according to the present invention.
15 to 18 is a view of a magnetic holding device having a magnetic material disposed so as to have one permanent magnet and a void according to the present invention.
19 to 22 are views of a magnetic holding device having a magnetic material disposed to have two permanent magnets and voids according to the present invention.
23 to 26 are views of a magnetic holding device having one permanent magnet and a magnetic material disposed to be movable according to the present invention.
27 to 30 are views of a magnetic holding device having two permanent magnets and a magnetic material disposed to be movable according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or elements. Or does not exclude additions. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 and 3 are views for explaining the principle of holding and releasing holding of the magnetic material holding device according to the present invention. 2A, 2B, and 2C are diagrams showing magnetic fluxes in permanent magnets and magnetic bodies, and FIGS. 3A and 3B are diagrams showing magnetic fluxes in magnetic circuits including permanent magnets and electromagnets. . 2 and 3, the principle of the magnetic holding device according to the present invention will be described in detail.

It is very difficult to define magnetism, and the source is the hole electrons that rotate around the protons in the nucleus of the ferromagnetic atoms. The electrons flow around the nucleus and generate electron flow, which causes magnetic energy.

Referring to FIG. 2A, the magnetic circuit 10 includes a permanent magnet 11, an N pole piece 12, and an S pole piece 13. When the first ferromagnetic material 14 and the second ferromagnetic material 15 are spaced apart by a predetermined interval or more in the magnetic circuit 10, the magnetic flux is formed as F1 and F2. Here, it is preferable that the N pole piece 12, the S pole piece 13, the 1st ferromagnetic material 15, and the 2nd ferromagnetic material 15 have a predetermined thickness and area or more.

Referring to FIG. 2B, the first ferromagnetic material 14 comes into contact with one end of the magnetic circuit 10. Magnetic flux tends to flow through ferromagnetic materials rather than paramagnetic bodies such as air. Therefore, most of the magnetic flux is formed to pass through the first ferromagnetic material 14, such as F3, the extremely small magnetic flux is formed at the other end, such as F4.

Referring to FIG. 2C, first ferromagnetic material 14 is in contact with one end of magnetic circuit 10, and second ferromagnetic material 15 is in contact with the other end of magnetic circuit 10. At this time, most of the magnetic flux is formed to pass through the first ferromagnetic material 14 first contacted, such as F5, the extremely small magnetic flux is formed in the second ferromagnetic material (15).

Thus, when the first ferromagnetic material 14 contacts one end of the magnetic circuit 10, the magnetic circuit 10 holds the first ferromagnetic material 14. After the magnetic circuit 10 holds the first ferromagnetic material 14 and the second ferromagnetic material 15 is in contact with the other end of the magnetic circuit 10, the magnetic circuit 10 makes the second ferromagnetic material 15 extremely insignificant. Hold by force or hardly hold.

3 is a diagram showing magnetic flux in the magnetic circuit 20. FIG. 3 (a) shows the magnetic flux when the ferromagnetic material is held in the magnetic circuit, and FIG. 3 (b) shows the magnetic flux in the magnet having the ferromagnetic material and the microcavity G1.

Referring to FIG. 3A, in the magnetic circuit 20, any one of the N and S poles of the first permanent magnet 21 is coupled with the first pole piece 23, and the first pole piece 23. The pole of the first permanent magnet 21 and the pole of the other first permanent magnet 21 coupled with the second pole piece 24 is coupled. Coupling here means being placed in contact with or with a constant void. At this time, when the magnetic body 25 is coupled to the first pole piece 23 and the second pole piece 24 of the magnetic circuit 20, the magnetic flux of the magnetic circuit 20 is formed as F7. Accordingly, the magnetic circuit 20 holds the magnetic body 25.

Referring to FIG. 3 (b), after the magnetic flux as in F7 of FIG. 3 (a) is formed, the first pole piece 23 is a pole of the first permanent magnet 21 coupled to the first pole piece 23. And the second pole piece 24 coupled to the pole of the second permanent magnet 22, the second pole piece 24 being the same as the pole of the first permanent magnet 21 coupled to the first pole piece 23. ) Poles are combined.

On the other hand, the magnetic flux has a property to flow through the permanent magnet (or electromagnet) rather than the magnetic material. In addition, the magnetic flux has a property of flowing through the permanent magnet (or electromagnet) with fine pores rather than the magnetic body. Therefore, the magnetic flux of the magnetic circuit 20 in Figure 3 (b) is formed as F8. Thus, the magnetic circuit 20 releases the holding of the magnetic material 25.

4 to 6 is a view of the magnetic holding device having one permanent magnet and one pole piece according to the present invention.

4, the magnetic holding device 100 according to an embodiment of the present invention is a permanent magnet 110, pole piece 120, magnetic material 130, coil 140 and a control device (not shown) It includes.

Permanent magnet 110, the pole of any one of the N, S pole is coupled to the pole piece (120). To be coupled here means that the permanent magnet 110 is in contact with the pole piece 120 or disposed with a predetermined gap. Meanwhile, a paramagnetic material may be disposed in a predetermined gap between the permanent magnet 110 and the pole piece 120.

The pole piece 120 is coupled to any one of the N and S poles of the permanent magnet 110 and is provided with a holding surface 125.

The magnetization material 130 is disposed such that one end thereof contacts the pole piece 120. The pole piece 120 and the magnetization material 130 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

The coil 140 surrounds the magnetization material 130. At this time, the coil 140 is preferably wrapped with a bobbin (145) that is a non-conductor.

The controller controls the magnetization of the magnetic material 130 by controlling the current flowing through the coil 140. That is, the control device controls the magnetization of the magnetic material 130 to hold the magnetic material (W) or release the holding of the magnetic material (W) on the holding surface 125 of the pole piece.

Referring to FIG. 5, the control device may include a coil 140 such that a pole, such as a pole of the permanent magnet 110 coupled with the pole piece 120, is formed at one end of the magnetic material 130 in contact with the pole piece 120. Apply current to At this time, the magnetic flux is formed to pass through the permanent magnet 110 and the magnetic body (W), as in F11, and also through the magnetic material 130 and the magnetic body (W), as in F12. Therefore, the magnetic material holding device 100 according to the present invention holds the magnetic material (W) on the holding surface 125 of the pole piece.

Referring to FIG. 6, the control device may include a coil 140 such that a pole different from a pole of the permanent magnet 110 coupled with the pole piece 120 is formed at one end of the magnetic material 130 in contact with the pole piece 120. Apply current to At this time, the magnetic flux is formed to pass through the permanent magnet 110 and the magnetization material 130, such as F13. That is, the magnetic material holding device 100 releases the holding of the magnetic material W held on the holding surface 125 of the pole piece.

7 to 10 are views of a magnetic holding device having one permanent magnet and two pole pieces according to the present invention.

Referring to FIG. 7, the magnetic material holding device 200 according to another embodiment of the present invention may include a permanent magnet 210, a first pole piece 220, a second pole piece 230, a magnetization material 240, and a coil. 250 and a controller (not shown).

The permanent magnet 210 is coupled to the first pole piece 220 of any one of the N, S poles. In addition, the permanent magnet 210 is coupled to the pole of the permanent magnet 210 and the other pole of the permanent magnet 210 is coupled to the first pole piece 210 and the second pole piece 230.

The first pole piece 220 is coupled to any one of the N, S poles of the permanent magnet 210, the holding surface 225 is provided.

The second pole piece 230 is coupled to the pole of the permanent magnet 210 and the pole of the other permanent magnet 210 coupled to the first pole piece 220, the holding surface 235 is provided. For example, when the N pole of the permanent magnet 210 is coupled to the first pole piece 220, the S pole of the permanent magnet 210 is coupled to the second pole piece 230.

The magnetization material 240 is disposed such that one end face is in contact with the first pole piece 220 and the other end face is in contact with the second pole piece 230. The first pole piece 220, the second pole piece 230, and the magnetization material 240 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

The coil 250 surrounds the magnetization material 240. At this time, the coil 250 is preferably wrapped with a non-conductive bobbin 255.

The controller controls the magnetization of the magnetization material 240 by controlling the current flowing in the coil 250. That is, the controller controls the magnetization of the magnetic material 240 to hold the magnetic material W or hold the magnetic material W on the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece. Release it.

Referring to FIG. 8, the control device may form a pole, such as a pole of the permanent magnet 210 coupled with the first pole piece 220, at one end surface of the magnetization material 240 contacting the first pole piece 220. Current is applied to the coil 250. For example, when the N pole of the permanent magnet 210 is coupled to the first pole piece 220 and the S pole of the permanent magnet 210 is coupled to the second pole piece 230, the first pole piece 220 is coupled. A current is applied to the coil 250 so that an N pole is formed at one end surface of the magnetic material 240 in contact with

At this time, the magnetic flux is formed to pass through the permanent magnet 210 and the magnetic body (W), as in F23, and also through the magnetic material 240 and magnetic body (W), as in F22. That is, the magnetic material holding device 200 according to the present invention holds the magnetic material (W) on the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece.

Referring to FIG. 9, when the magnetic material W is held on the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece, the controller cuts off the current applied to the coil 250. do. At this time, the magnetic flux is formed to pass through the permanent magnet 210 and the magnetic body (W), such as F24.

That is, the magnetic material holding device 200 according to the present invention after holding the magnetic material (W), even if no power is supplied to hold the magnetic material (W). As described above, the magnetic holding device 200 according to the present invention requires power supply only when holding the magnetic material W, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 10, when the magnetic body W is held on the holding surface 225 of the first pole piece and the holding surface of the second pole piece 235, the control device contacts the first pole piece 220. A current is applied to the coil 250 so that a pole different from the pole of the permanent magnet 210 coupled to the first pole piece 220 is formed on one end of the material 240. For example, when the N pole of the permanent magnet 210 is coupled to the first pole piece 220 and the S pole of the permanent magnet 210 is coupled to the second pole piece 230, the first pole piece 220 is used. A current is applied to the coil 250 so that an S pole is formed at one end surface of the magnetic material 240 which is in contact with the N-type.

At this time, the magnetic flux is formed to pass through the permanent magnet 210 and the magnetization material 240, such as F25. Accordingly, the magnetic material holding device 200 according to the present invention releases the holding of the magnetic material W held on the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece.

Referring back to FIG. 7, the control device releases the magnetic material W held on the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece, and then applies the coil 250 to the coil 250. Shut off the applied current. At this time, the magnetic flux is formed to pass through the permanent magnet 210 and the magnetization material 240, such as F21. That is, the magnetic body holding apparatus 200 according to the present invention maintains the release of the magnetic body (W) even after no more power is supplied after releasing the holding of the magnetic body (W). Therefore, the magnetic holding device 200 of the present invention requires a power supply only when releasing the holding of the magnetic material (W), and does not require a power supply when maintaining the release release, thereby reducing the maintenance cost. .

Referring back to FIG. 8, the control device contacts the first pole piece 220 when the magnetic material W is held by the holding surface 225 of the first pole piece and the holding surface 235 of the second pole piece. A current is applied to the coil 250 such that a pole, such as a pole of the permanent magnet 210 coupled to the first pole piece 220, is formed on one end surface of the magnetic material 240. For example, when the N pole of the permanent magnet 210 is coupled to the first pole piece 220 and the S pole of the permanent magnet 210 is coupled to the second pole piece 230, the first pole piece 220 is coupled. A current is applied to the coil 250 so that an N pole is formed at one end surface of the magnetic material 240 in contact with

At this time, the magnetic flux is formed to pass through the magnetic material 240 and the magnetic body (W), such as F22, is added to the magnetic flux already formed, such as F23. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic body holding apparatus 200 according to the present invention.

11 to 14 are views of a magnetic holding device having two permanent magnets and two pole pieces according to the present invention.

Referring to FIG. 11, the magnetic material holding device 300 according to another embodiment of the present invention may include a first permanent magnet 310, a second permanent magnet 320, a first pole piece 330, and a second pole piece. 340, the magnetization material 350, the coil 360, and a controller (not shown).

In the first permanent magnet 310, one of the N and S poles is coupled to the first pole piece 330.

The second permanent magnet 320 is coupled to the second pole piece 340 with the pole of the second permanent magnet 320 different from the pole of the first permanent magnet 310 coupled with the first pole piece 330.

The first pole piece 330 is coupled to any one of the N, S poles of the first permanent magnet 310, the holding surface 335 is provided.

The second pole piece 340 is coupled to the pole of the second permanent magnet 320 and the pole of the permanent magnet 310 coupled to the first pole piece 330, the holding surface 345 is provided. For example, when the S pole of the first permanent magnet 310 is coupled to the first pole piece 330, the N pole of the second permanent magnet 320 is coupled to the second pole piece 340.

The magnetization material 350 is disposed such that one end face is in contact with the first pole piece 330 and the other end face is in contact with the second pole piece 340. The first pole piece 330, the second pole piece 340, and the magnetization material 350 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

Coil 360 wraps magnetic material 350. At this time, the coil 360 is preferably wrapped with a bobbin 365 which is a non-conductor.

The controller controls the magnetization of the magnetic material 350 by controlling the current flowing in the coil 360. That is, the controller controls the magnetization of the magnetic material 350 to hold the magnetic material W or hold the magnetic material W on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece. Release it.

Referring to FIG. 12, the control device has a pole, such as a pole of the first permanent magnet 310 coupled with the first pole piece 330, on one end surface of the magnetization material 350 in contact with the first pole piece 330. A current is applied to the coil 360 to be formed. For example, when the S pole of the first permanent magnet 310 is coupled to the first pole piece 330 and the N pole of the second permanent magnet 310 is coupled to the second pole piece 340, the first pole piece 330 is coupled to the first pole piece 330. A current is applied to the coil 360 so that an S pole is formed at one end of the magnetic material 350 in contact with the pole piece 340.

At this time, the magnetic flux is formed to pass through the second permanent magnet 320, the magnetic material (W), the first permanent magnet 310, as in F33, and also through the magnetic material 350 and the magnetic material (W) as in F32 Is formed. That is, the magnetic material holding device 300 according to the present invention holds the magnetic material (W) on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece.

Referring to FIG. 13, when the magnetic material W is held on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece, the controller cuts off the current applied to the coil 360. do. At this time, the magnetic flux is formed to pass through the second permanent magnet 320, the magnetic body (W), the first permanent magnet 310, as in F34.

That is, the magnetic material holding device 300 according to the present invention after holding the magnetic material (W), even if no more power is supplied to hold the magnetic material (W). As described above, the magnetic material holding device 300 of the present invention requires power supply only when holding the magnetic material W, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 14, the controller is magnetized to contact the first pole piece 330 when the magnetic material W is held on the holding surface 345 of the first pole piece and the holding surface of the second pole piece 355. An electric current is applied to the coil 360 to form a pole different from the pole of the first permanent magnet 310 coupled to the first pole piece 330 on one surface of the material 350. For example, when the S pole of the first permanent magnet 310 is coupled to the first pole piece 330 and the N pole of the second permanent magnet 320 is coupled to the second pole piece 340, the first pole piece 330 is coupled to the first pole piece 330. A current is applied to the coil 360 so that an N pole is formed at one end surface of the magnetic material 350 that is in contact with the pole piece 330.

At this time, the magnetic flux is formed to pass through the second permanent magnet 320, the magnetization material 350, the first permanent magnet 310, such as F35. Accordingly, the magnetic material holding device 300 according to the present invention releases the holding of the magnetic material W held on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece.

Referring back to FIG. 11, the controller releases the magnetic material W held on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece, and then applies the coil 360 to the coil 360. Shut off the applied current. At this time, the magnetic flux is formed to pass through the second permanent magnet 320, the magnetization material 240, the first permanent magnet 310, as in F31. That is, the magnetic material holding device 300 according to the present invention releases the holding of the magnetic material (W), and maintains the release of the magnetic material (W) even if no more power is supplied. Therefore, the magnetic holding device 300 of the present invention requires a power supply only when releasing the holding of the magnetic material (W), and does not require a power supply to maintain the holding release, thereby reducing the maintenance cost. .

Referring back to FIG. 12, the control device contacts the first pole piece 330 when the magnetic material W is held on the holding surface 335 of the first pole piece and the holding surface 345 of the second pole piece. A current is applied to the coil 360 such that a pole, such as a pole of the first permanent magnet 310 coupled to the first pole piece 330, is formed at one end of the magnetization material 350. For example, when the S pole of the first permanent magnet 320 is coupled to the first pole piece 340 and the N pole of the second permanent magnet 320 is coupled to the second pole piece 340, the first pole piece 340 is coupled to the first pole piece 340. A current is applied to the coil 360 so that an S pole is formed at one end of the magnetic material 350 in contact with the pole piece 330.

At this time, the magnetic flux is formed to pass through the magnetic material 350 and the magnetic body (W), such as F32, added to the magnetic flux already formed, such as F33. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic body holding apparatus 300 according to the present invention.

15 to 18 is a view of a magnetic holding device having a magnetic material disposed so as to have one permanent magnet and a void according to the present invention.

Referring to FIG. 15, the magnetic material holding device 400 according to another embodiment of the present invention may include a permanent magnet 410, a first pole piece 420, a second pole piece 430, a magnetization material 440, A coil 450 and a controller (not shown).

The permanent magnet 410 is coupled to the first pole piece 420 of any one of the N, S poles. In addition, the permanent magnet 410 is the pole of the permanent magnet 410 coupled with the first pole piece 410 and the pole of the other permanent magnet 410 is coupled with the second pole piece 430.

The first pole piece 420 is coupled to any one of the N, S poles of the permanent magnet 410, the holding surface 425 is provided.

The second pole piece 430 is coupled to the pole of the permanent magnet 410 and the pole of the other permanent magnet 410 coupled with the first pole piece 420, the holding surface 435 is provided. For example, when the N pole of the permanent magnet 410 is coupled to the first pole piece 420, the S pole of the permanent magnet 410 is coupled to the second pole piece 430.

The magnetization material 440 has one end faced to the first pole piece 420, the other end faced to the side surface of the second pole piece 430, and is spaced apart from the predetermined interval G2. The gap G2 between the magnetic material 440 and the second pole piece 430 is a second magnetic flux emitted from the magnetic material 440 when power is supplied to the coil 450 to magnetize the magnetic material 440. It is a size that can move to the pole piece (430).

The first pole piece 420, the second pole piece 430, and the magnetization material 440 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

The coil 450 surrounds the magnetization material 440. At this time, the coil 450 is preferably wrapped with a non-conductive bobbin 455.

The separating member 452 is disposed between the coil 450 and the second pole piece 430 to support the magnetic material 440 spaced apart from the second pole piece 430. The separating member 452 may be made of various materials such as plastic that is not affected by the magnetic field. Of course, the separating member 452 may be omitted, in which case the end of the bobbin 455 is in contact with the side of the second pole piece 430.

The controller controls the magnetization of the magnetic material 440 by controlling the current flowing in the coil 450. That is, the controller controls the magnetization of the magnetic material 440 to hold the magnetic material W or to hold the magnetic material W on the holding surface 425 of the first pole piece and the holding surface 535 of the second pole piece. Release it.

Referring to FIG. 16, the controller is magnetized to contact the first pole piece 420 when the magnetic material W is held on the holding surface 425 of the first pole piece and the holding surface 435 of the second pole piece. A current is applied to the coil 450 such that a pole, such as a pole of the permanent magnet 410, is coupled to the first pole piece 420 on one surface of the material 440. For example, when the N pole of the permanent magnet 410 is coupled to the first pole piece 420, and the S pole of the permanent magnet 410 is coupled to the second pole piece 430, the first pole piece 420. An electric current is applied to the coil 450 so that an N pole is formed at one end of the magnetic material 440 in contact with the ().

At this time, the magnetic flux is formed to pass through the magnetic material 440 and the magnetic body (W), such as F42, is added to the magnetic flux already formed, such as F41. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic body holding device 400 according to the present invention.

Referring to FIG. 17, when the magnetic material W is held on the holding surface 425 of the first pole piece and the holding surface 435 of the second pole piece, the controller cuts off the current applied to the coil 450. do. At this time, the magnetic flux is formed to pass through the permanent magnet 410 and the magnetic body (W), such as F43.

That is, the magnetic material holding device 400 according to the present invention after holding the magnetic material (W), even if no more power is supplied to hold the magnetic material (W). As described above, the magnetic material holding device 400 of the present invention requires power supply only when holding the magnetic material W, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 18, when the magnetic material W is held in the first pole piece 425 and the second pole piece 435, the controller includes one end of the magnetic material 440 in contact with the first pole piece 420. A current is applied to the coil 450 so that a pole different from the pole of the permanent magnet 410 coupled to the first pole piece 420 is formed on the surface. For example, when the N pole of the permanent magnet 410 is coupled to the first pole piece 420, and the S pole of the permanent magnet 410 is coupled to the second pole piece 430, the first pole piece 420. A current is applied to the coil 450 so that the S pole is formed in the magnetic material 440 which is in contact with one end of the surface.

At this time, the magnetic flux is formed through the permanent magnet 410 and the magnetization material 440, such as F44. Accordingly, the magnetic material holding device 400 according to the present invention releases the holding of the magnetic material W held on the holding surface 425 of the first pole piece and the holding surface 435 of the second pole piece.

19 to 22 are views of a magnetic holding device having a magnetic material disposed to have two permanent magnets and voids according to the present invention.

Referring to FIG. 19, the magnetic holding device 500 according to another embodiment of the present invention may include a first permanent magnet 510, a second permanent magnet 520, a first pole piece 530, and a second pole piece. 540, magnetic material 550, coil 560, and control device (not shown).

In the first permanent magnet 510, either one of the N and S poles is coupled to the first pole piece 530.

The second permanent magnet 520 has a pole of the first permanent magnet 510 coupled with the first pole piece 530 and the other pole of the second permanent magnet 520 is coupled with the second pole piece 540.

The first pole piece 530 is coupled to any one of the N, S poles of the first permanent magnet 510, the holding surface 535 is provided.

The second pole piece 540 is coupled to the pole of the permanent magnet 510 coupled with the first pole piece 530 and the other pole of the second permanent magnet 520, the holding surface 545 is provided. For example, when the S pole of the first permanent magnet 510 is coupled to the first pole piece 530, the N pole of the second permanent magnet 520 is coupled to the second pole piece 540.

The magnetization material 550 has one end faced to the first pole piece 530, the other end faced to the side of the second pole piece 540, and is spaced apart from the predetermined gap G3. The interval G3 between the magnetization material 550 and the second pole piece 540 is such that when the power is supplied to the coil 560 and the magnetization material 550 is magnetized, the magnetic flux emitted from the magnetization material 550 becomes second. It is a size that can move to the pole piece (540).

The first pole piece 530, the second pole piece 540, and the magnetization material 550 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

Coil 560 wraps magnetic material 550. At this time, the coil 560 is preferably wrapped with a non-conductive bobbin 565.

The separating member 562 is disposed between the coil 560 and the second pole piece 540 to support the magnetization material 550 spaced apart from the second pole piece 540. The separating member 562 may be made of various materials such as plastic that is not affected by the magnetic field. Of course, the separating member 562 may be omitted, in which case the end of the bobbin 565 is in contact with the side of the second pole piece 540.

The controller controls the magnetization of the magnetic material 550 by controlling the current flowing in the coil 560. That is, the controller controls the magnetization of the magnetic material 550 to hold the magnetic material W or to hold the magnetic material W on the holding surface 535 of the first pole piece and the holding surface 545 of the second pole piece. Release it.

Referring to FIG. 20, the control device has a pole, such as a pole of the first permanent magnet 510 coupled with the first pole piece 530, at one end surface of the magnetic material 550 in contact with the first pole piece 530. A current is applied to the coil 560 to form. For example, when the S pole of the first permanent magnet 510 is coupled to the first pole piece 530 and the N pole of the second permanent magnet 510 is coupled to the second pole piece 540, the first pole piece 530 is coupled to the first pole piece 530. A current is applied to the coil 560 so that the S pole is formed at one end of the magnetic material 550 in contact with the pole piece 540.

At this time, the magnetic flux is formed to pass through the second permanent magnet 520, the magnetic body (W), the first permanent magnet 510, as in F52, and also to pass through the magnetic material 550 and the magnetic body (W), as in F51 Is formed. That is, the magnetic material holding device 500 according to the present invention holds the magnetic material (W) on the holding surface 535 of the first pole piece and the holding surface 545 of the second pole piece.

Referring to FIG. 21, when the magnetic material W is held on the holding surface 535 of the first pole piece and the holding surface 545 of the second pole piece, the controller cuts off the current applied to the coil 560. do. At this time, the magnetic flux is formed to pass through the second permanent magnet 520, the magnetic body (W), the first permanent magnet 510, as in F53.

That is, the magnetic material holding device 500 according to the present invention after holding the magnetic material (W), even if no power is supplied to hold the magnetic material (W). As described above, the magnetic holding device 500 of the present invention requires power supply only when the magnetic material W is held, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 22, when the magnetic material W is held on the holding surface 535 of the first pole piece and the holding surface of the second pole piece 545, the control device contacts the first pole piece 530. A current is applied to the coil 560 so that a pole different from the pole of the first permanent magnet 510 coupled with the first pole piece 530 is formed at one end of the material 550. For example, when the S pole of the first permanent magnet 510 is coupled to the first pole piece 530 and the N pole of the second permanent magnet 520 is coupled to the second pole piece 540, the first pole piece 530 is coupled to the first pole piece 530. A current is applied to the coil 560 so that an N pole is formed at one end surface of the magnetic material 550 which is in contact with the pole piece 530.

At this time, the magnetic flux is formed to pass through the second permanent magnet 520, the magnetization material 550, the first permanent magnet 510, such as F54. Accordingly, the magnetic material holding device 500 according to the present invention releases the holding of the magnetic material W held on the holding surface 535 of the first pole piece and the holding surface 545 of the second pole piece.

Referring back to FIG. 20, the controller is in contact with the first pole piece 530 when the magnetic material W is held by the holding surface 535 of the first pole piece and the holding surface 545 of the second pole piece. An electric current is applied to the coil 560 such that a pole, such as a pole of the first permanent magnet 510 coupled to the first pole piece 530, is formed at one end of the magnetization material 550. For example, when the S pole of the first permanent magnet 520 is coupled to the first pole piece 540, and the N pole of the second permanent magnet 520 is coupled to the second pole piece 540, the first pole piece 540 is coupled to the first pole piece 540. A current is applied to the coil 560 so that the S pole is formed at one end of the magnetic material 550 in contact with the pole piece 530.

At this time, the magnetic flux is formed to pass through the magnetic material 550 and the magnetic body (W), such as F51, added to the magnetic flux already formed, such as F52. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic body holding apparatus 500 according to the present invention.

23 to 26 are views of a magnetic holding device having one permanent magnet and a magnetic material disposed to be movable according to the present invention.

Referring to FIG. 23, a magnetic holding device 600 according to another embodiment of the present invention may include a permanent magnet 610, a first pole piece 620, a second pole piece 630, a magnetic material 640, A coil 650 and a controller (not shown).

The permanent magnet 610 is coupled to the first pole piece 620 of any one of the N, S poles. In addition, the permanent magnet 610 is the pole of the permanent magnet 610 coupled with the first pole piece 620 and the pole of the other permanent magnet 610 is coupled with the second pole piece 630.

The first pole piece 620 is coupled to any one of the N, S poles of the permanent magnet 610, the holding surface 625 and the insertion groove 622 is provided.

The second pole piece 630 is coupled to the pole of the permanent magnet 610 and the pole of the other permanent magnet 610 coupled with the first pole piece 620, the holding surface 635 is provided. For example, when the N pole of the permanent magnet 610 is coupled to the first pole piece 620, the S pole of the permanent magnet 610 is coupled to the second pole piece 630.

The magnetization material 640 is disposed such that one end surface is inserted into the insertion groove 622 provided in the first pole piece 620, and the other end surface is in contact with the second pole piece 630 or spaced apart from the predetermined interval G4. .

The depth D1 of the insertion groove 622 is greater than the gap G4 between the magnetization material 640 and the second pole piece 630. Therefore, even if the other end surface of the magnetization material 640 contacts the second pole piece 630, the magnetization material 640 may remain in contact with the first pole piece 620. That is, the magnetization material 640 may move between the first pole piece 620 and the second pole piece 630 while being in contact with the first pole piece 620.

The first pole piece 620, the second pole piece 630, and the magnetization material 640 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

The coil 650 wraps the magnetic material 640. At this time, the coil 650 is preferably wrapped with a non-conductive bobbin 655. At this time, the magnetic material 640 and the coil 650 maintains a constant space (G5) so that the magnetic material 640 can be moved freely. Preferably, the magnetization material 640 and the bobbin 655 maintain a constant space G5 to allow the magnetization material 640 to move freely.

The controller controls the magnetization of the magnetic material 640 by controlling the current flowing in the coil 650. That is, the controller controls the magnetization of the magnetic material 640 to hold the magnetic material W or hold the magnetic material W on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece. Release it.

Referring to FIG. 24, the control unit is configured such that a pole, such as a pole of the permanent magnet 610 coupled with the first pole piece 620, is formed at one end of the magnetic material 640 in contact with the first pole piece 620. Current is applied to the coil 650. For example, when the N pole of the permanent magnet 610 is coupled to the first pole piece 620, and the S pole of the permanent magnet 610 is coupled to the second pole piece 630, the first pole piece 620. A current is applied to the coil 650 so that the N pole is formed at one end of the magnetic material 640 in contact with

At this time, the magnetization material 640 is moved to be spaced apart from the second pole piece 630 by a predetermined interval (G4). The magnetic flux is formed to pass through the permanent magnet 610 and the magnetic body (W) as in F63, and also is formed to pass through the magnetic material 640 and the magnetic body (W) as in F62. That is, the magnetic material holding device 600 according to the present invention holds the magnetic material (W) on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece.

Referring to FIG. 25, when the magnetic material W is held on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece, the controller cuts off the current applied to the coil 650. do. At this time, the magnetic flux is formed to pass through the permanent magnet 610 and the magnetic body (W), such as F64.

That is, the magnetic material holding device 600 according to the present invention after holding the magnetic material (W), even if no power is supplied to hold the magnetic material (W). As described above, the magnetic material holding device 600 of the present invention requires power supply only when holding the magnetic material W, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 26, when the magnetic material W is held on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece, the control device contacts the first pole piece 620. A current is applied to the coil 650 so that a pole different from the pole of the permanent magnet 610 coupled with the first pole piece 620 is formed on one end of the material 640. For example, when the N pole of the permanent magnet 610 is coupled to the first pole piece 620, and the S pole of the permanent magnet 610 is coupled to the second pole piece 630, the first pole piece 620. A current is applied to the coil 650 so that the S pole is formed on one end surface of the magnetization material 640 which is in contact with the N).

At this time, the other end surface of the magnetization material 640 is moved to contact the second pole piece 630. In addition, the magnetic flux is formed to pass through the permanent magnet 610 and the magnetization material 640, such as F65. Accordingly, the magnetic material holding device 600 according to the present invention releases the holding of the magnetic material W held on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece.

Referring back to FIG. 23, the controller releases the magnetic material W held on the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece, and then applies the coil 650 to the coil 650. Shut off the applied current. At this time, the magnetic flux is formed to pass through the permanent magnet 610 and the magnetization material 640, such as F21. That is, the magnetic holding device 600 according to the present invention releases the holding of the magnetic body (W), and maintains the release of the magnetic body (W) even if no more power is supplied. Therefore, the magnetic holding device 600 of the present invention requires a power supply only when releasing the holding of the magnetic material (W), and does not require a power supply when holding the holding release, thereby reducing the maintenance cost. .

Referring back to FIG. 24, the controller is in contact with the first pole piece 620 when the magnetic material W is held by the holding surface 625 of the first pole piece and the holding surface 635 of the second pole piece. A current is applied to the coil 650 such that a pole, such as a pole of the permanent magnet 610, coupled to the first pole piece 620 is formed at one end of the magnetization material 640. For example, when the N pole of the permanent magnet 610 is coupled to the first pole piece 620, and the S pole of the permanent magnet 610 is coupled to the second pole piece 630, the first pole piece 620. A current is applied to the coil 650 so that the N pole is formed at one end of the magnetic material 640 in contact with

At this time, the magnetic flux is formed to pass through the magnetic material 640 and the magnetic body (W), such as F62, added to the magnetic flux already formed, such as F63. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic holding device 600 according to the present invention.

27 to 30 are views of a magnetic holding device having two permanent magnets and a magnetic material disposed to be movable according to the present invention.

Referring to FIG. 27, a magnetic holding device 700 according to another embodiment of the present invention may include a first permanent magnet 710, a second permanent magnet 720, a first pole piece 730, and a second pole piece. 740, magnetic material 750, coil 760, and controller (not shown).

In the first permanent magnet 710, one of the N and S poles is coupled to the first pole piece 730.

The second permanent magnet 320 has a pole of the first permanent magnet 710 coupled with the first pole piece 730 and the pole of the second permanent magnet 720 is coupled with the second pole piece 740.

The first pole piece 730 is coupled to any one of the N, S poles of the first permanent magnet 710, the holding surface 735 and the insertion groove 732 is provided.

The second pole piece 740 is coupled to the pole of the first permanent magnet 710 coupled with the first pole piece 730 and the pole of the second permanent magnet 720, the holding surface 745 is provided. . For example, when the S pole of the first permanent magnet 710 is coupled to the first pole piece 730, the N pole of the second permanent magnet 720 is coupled to the second pole piece 740.

The magnetization material 750 is disposed such that one end surface is inserted into the insertion groove 732 provided in the first pole piece 730, and the other end surface is in contact with the second pole piece 740 or spaced apart from the predetermined interval G6. .

The depth D2 of the insertion groove 732 is greater than the gap G6 between the magnetization material 750 and the second pole piece 740. Therefore, even if the other end surface of the magnetization material 750 is in contact with the second pole piece 740, the magnetization material 750 may be in contact with the first pole piece 730. That is, the magnetization material 750 may move between the first pole piece 730 and the second pole piece 740 while being in contact with the first pole piece 730.

The first pole piece 730, the second pole piece 740, and the magnetization material 750 are preferably ferromagnetic materials such as iron, cobalt, nickel, and alloys thereof.

Coil 760 wraps magnetic material 750. At this time, the coil 760 is preferably wrapped with a non-conductive bobbin 765. At this time, the magnetization material 750 and the coil 760 maintain a constant space G7 so that the magnetization material 750 can be moved freely. Preferably, the magnetization material 750 and the bobbin 765 maintain a constant space G7 to allow the magnetization material 750 to move freely.

The controller controls the magnetization of the magnetic material 750 by controlling the current flowing in the coil 760. That is, the controller controls the magnetization of the magnetic material 750 to hold the magnetic material W or hold the magnetic material W on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece. Release it.

Referring to FIG. 28, the control device may have a pole, such as a pole of the first permanent magnet 710 coupled with the first pole piece 730, at one end of the magnetic material 750 in contact with the first pole piece 730. A current is applied to the coil 760 to be formed. For example, when the S pole of the first permanent magnet 710 is coupled to the first pole piece 730, and the N pole of the second permanent magnet 710 is coupled to the second pole piece 740, the first pole piece 730 is coupled to the first pole piece 730. A current is applied to the coil 760 so that an S pole is formed at one end of the magnetic material 750 in contact with the pole piece 740.

At this time, the magnetization material 750 is moved to be spaced apart from the second pole piece 740 by a predetermined interval (G6). The magnetic flux is formed to pass through the second permanent magnet 720, the magnetic body (W), the first permanent magnet 710 as in F72, and also is formed to pass through the magnetic material 750 and the magnetic body (W) as in F73. . That is, the magnetic material holding device 700 according to the present invention holds the magnetic material (W) on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece.

Referring to FIG. 29, the control device blocks a current applied to the coil 760 when the magnetic material W is held on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece. do. At this time, the magnetic flux is formed to pass through the second permanent magnet 720, the magnetic body (W), the first permanent magnet 710, such as F74.

That is, the magnetic body holding apparatus 700 according to the present invention holds the magnetic body (W) after holding the magnetic body (W), even if no more power is supplied. As described above, the magnetic material holding device 700 of the present invention requires power supply only when holding the magnetic material W, and does not require power supply when holding the magnetic material W, thereby reducing the maintenance cost.

Referring to FIG. 30, when the magnetic material W is held on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece, the controller contacts the first pole piece 730. An electric current is applied to the coil 760 such that a pole different from a pole of the first permanent magnet 710 coupled with the first pole piece 730 is formed at one end of the material 750. For example, when the S pole of the first permanent magnet 710 is coupled to the first pole piece 730 and the N pole of the second permanent magnet 720 is coupled to the second pole piece 740, the first pole piece 730 is coupled to the first pole piece 730. A current is applied to the coil 760 so that an N pole is formed at one end surface of the magnetic material 750 which is in contact with the pole piece 730.

At this time, the other end surface of the magnetization material 750 is moved to contact the second pole piece 740. The magnetic flux is formed to pass through the second permanent magnet 720, the magnetization material 750, the first permanent magnet 710, such as F75. Accordingly, the magnetic material holding device 700 according to the present invention releases the holding of the magnetic material W held on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece.

Referring back to FIG. 27, the controller releases the magnetic material W held on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece, and then applies the coil 760 to the coil 760. Shut off the applied current. At this time, the magnetic flux is formed to pass through the second permanent magnet 720, the magnetization material 750, the first permanent magnet 710, such as F71. That is, after the magnetic body holding apparatus 700 according to the present invention releases the holding of the magnetic body W, the magnetic body W maintains the holding of the magnetic body W even if no power is supplied. Therefore, the magnetic holding device 700 of the present invention requires a power supply only when releasing the holding of the magnetic material (W), and does not require a power supply when holding the holding release, thereby reducing the maintenance cost. .

Referring back to FIG. 28, the control device contacts the first pole piece 730 when the magnetic material W is held on the holding surface 735 of the first pole piece and the holding surface 745 of the second pole piece. A current is applied to the coil 760 such that a pole, such as a pole of the first permanent magnet 710 coupled to the first pole piece 730, is formed at one end of the magnetization material 750. For example, when the S pole of the first permanent magnet 720 is coupled to the first pole piece 740, and the N pole of the second permanent magnet 720 is coupled to the second pole piece 740, the first pole piece 740 is coupled to the first pole piece 740. A current is applied to the coil 760 so that an S pole is formed at one end of the magnetic material 750 in contact with the pole piece 730.

At this time, the magnetic flux is formed to pass through the magnetic material 750 and the magnetic body (W), such as F73, and is added to the magnetic flux already formed, such as F73. That is, as the total magnetic flux increases, the magnetic body W is more strongly held in the magnetic body holding apparatus 700 according to the present invention.

While the above has been shown and described with respect to preferred embodiments and applications of the present invention, the present invention is not limited to the specific embodiments and applications described above, the invention without departing from the gist of the invention claimed in the claims Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

100, 200, 300, 400, 500, 600, 700: Magnetic body holding device
110, 210, 310, 410, 510, 610, 710: first permanent magnet
320, 520, 720: Second permanent magnet
120, 220, 330, 420, 530, 620, 730: first pole piece
125, 225, 335, 425, 535, 625, 735: first pole piece holding surface
230, 340, 430, 540, 630, 740: second pole piece
235, 345, 435, 545, 635, 745: second pole piece holding surface
130, 240, 350, 440, 550, 640, 750: Magnetized material
140, 250, 360, 450, 560, 650, 760: coil
145, 255, 365, 455, 565, 655, 765: bobbin

Claims (35)

Permanent magnets;
A pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface;
Magnetic material disposed at one end thereof in contact with the pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A current is applied to the coil so that a pole, such as a pole of the permanent magnet, coupled to the pole piece is formed at one end of the magnetic material in contact with the pole piece, and a magnetic flux flows to the magnetic body in contact with the holding surface of the pole piece. Holding the magnetic material
Magnetic material holding device characterized in that.
delete Permanent magnets;
A pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface;
Magnetic material disposed at one end thereof in contact with the pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Magnetic flux flowing through the magnetic material held on the holding surface of the pole piece by applying a current to the coil so that a pole different from the pole of the permanent magnet coupled to the pole piece is formed at one end of the magnetic material in contact with the pole piece. To control the release of the magnetic material
Magnetic material holding device characterized in that.
delete Permanent magnets;
A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A current is applied to the coil such that a pole, such as a pole of the permanent magnet, coupled to the first pole piece is formed at one end surface of the magnetic material in contact with the first pole piece, Holding the magnetic body by flowing magnetic flux to a magnetic body in contact with the holding surface of the second pole piece
Magnetic material holding device characterized in that.
6. The method of claim 5,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method according to any one of claims 5 to 6,
The control device includes:
A current is applied to the coil to form a pole different from the pole of the permanent magnet coupled to the first pole piece on one end of the magnetization material in contact with the first pole piece, Releasing the holding of the magnetic body by controlling the magnetic flux flowing in the magnetic body held on the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method of claim 7, wherein
The control device includes:
Blocking the current applied to the coil after the magnetic material is released from the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
Permanent magnets;
A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
The pole of the permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece when a magnetic material is held on the holding face of the first pole piece and the holding face of the second pole piece. Applying a current to the coil to form a pole such as to reinforce the holding of the magnetic body by adding magnetic flux to the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece;
Magnetic material holding device characterized in that.
delete A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole, such as a pole of the first permanent magnet, coupled to the first pole piece is formed at one end of the magnetization material in contact with the first pole piece; Holding the magnetic body by flowing magnetic flux to a magnetic body in contact with a surface and a holding surface of the second pole piece
Magnetic material holding device characterized in that.
12. The method of claim 11,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method according to any one of claims 11 to 12,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole different from the pole of the first permanent magnet coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece; Releasing the holding of the magnetic body by controlling a magnetic flux flowing through the magnetic body held on the surface and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method of claim 13,
The control device includes:
Blocking the current applied to the coil after the magnetic material is released from the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetic material disposed such that one end face is in contact with the first pole piece and the other end face is in contact with the second pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
The first permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece when a magnetic material is held on the holding face of the first pole piece and the holding face of the second pole piece; By applying a current to the coil to form a pole, such as a pole of, by adding a magnetic flux to the magnetic body held on the holding surface of the first pole piece and the second pole piece to strengthen the holding of the magnetic body that
Magnetic material holding device characterized in that.
delete Permanent magnets;
A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A current is applied to the coil to form a pole different from the pole of the permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece, Releasing the holding of the magnetic body by controlling the magnetic flux flowing in the magnetic body held on the holding surface of the second pole piece
Magnetic holding device characterized in that.
Permanent magnets;
A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A current is applied to the coil such that a pole, such as a pole of the permanent magnet, coupled to the first pole piece is formed at one end surface of the magnetic material in contact with the first pole piece, Reinforcing the holding of the magnetic material by applying magnetic flux to the magnetic material held on the holding surface of the second pole piece
Magnetic holding device characterized in that.
Permanent magnets;
A first pole piece to which any one of the N and S poles of the permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
delete A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole different from the pole of the first permanent magnet coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece; Releasing the holding of the magnetic body by controlling a magnetic flux flowing through the magnetic body held on the surface and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole, such as a pole of the first permanent magnet, coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece; Reinforcing the holding of the magnetic body by applying magnetic flux to the magnetic body held on the surface and the holding surface of the second pole piece
Magnetic holding device characterized in that.
A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetization material having one end face in contact with the first pole piece and the other end face spaced apart from the second pole piece by a predetermined distance;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
delete Permanent magnets;
A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A holding surface of the first pole piece by applying a current to the coil such that a pole, such as a pole of the permanent magnet, coupled to the first pole piece is formed at one end surface of the magnetic material in contact with the first pole piece; Holding the magnetic body by flowing magnetic flux to the magnetic body in contact with the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method of claim 25,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
The method according to any one of claims 25 to 26,
The control device includes:
A holding surface of the first pole piece by applying a current to the coil such that a pole different from the pole of the permanent magnet coupled to the first pole piece is formed at one end of the magnetization material in contact with the first pole piece; Releasing the holding of the magnetic body by controlling the magnetic flux flowing through the magnetic body held on the holding surface of the second pole piece
Magnetic material holding device characterized in that.
Permanent magnets;
A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
A current is applied to the coil such that a pole, such as a pole of the permanent magnet, coupled to the first pole piece is formed at one end surface of the magnetic material in contact with the first pole piece, Reinforcing the holding of the magnetic material by applying magnetic flux to the magnetic material held on the holding surface of the second pole piece
Magnetic holding device characterized in that.
Permanent magnets;
A first pole piece coupled to any one of the N and S poles of the permanent magnet and having a holding surface and an insertion groove;
A second pole piece having a holding surface coupled to a pole of the permanent magnet and another pole of the permanent magnet coupled to the first pole piece;
A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
When the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece, the permanent magnet of the permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece. Applying a current to the coil so that a pole, such as a pole, is formed to reinforce the holding of the magnetic body by adding magnetic flux to the magnetic body held on the holding surface of the first pole piece and the holding surface of the second pole piece;
Magnetic material holding device characterized in that.
delete A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface and an insertion groove;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole, such as a pole of the first permanent magnet, coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece; Holding the magnetic body by flowing magnetic flux on a magnetic body in contact with the holding surface of the surface and the second pole piece
Magnetic material holding device characterized in that.
32. The method of claim 31,
The control device includes:
Blocking the current applied to the coil after the magnetic material is held on the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
33. The method according to any one of claims 31 to 32,
The control device includes:
Holding the first pole piece by applying a current to the coil such that a pole different from the pole of the first permanent magnet coupled to the first pole piece is formed at one end of the magnetic material in contact with the first pole piece; Releasing the holding of the magnetic body by controlling the magnetic flux flowing through the magnetic body held on the surface and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
34. The method of claim 33,
The control device includes:
Blocking the current applied to the coil after the magnetic material is released from the holding surface of the first pole piece and the holding surface of the second pole piece
Magnetic material holding device characterized in that.
A first permanent magnet and a second permanent magnet;
A first pole piece to which any one of the N and S poles of the first permanent magnet is coupled and having a holding surface and an insertion groove;
A second pole piece having a holding surface coupled to a pole of the first permanent magnet and another pole of the second permanent magnet coupled to the first pole piece;
A magnetization material having one end surface inserted into the insertion groove and disposed to move between the first pole piece and the second pole piece in contact with the first pole piece;
A coil surrounding the magnetic material; And
It includes a control device for controlling the magnetization of the magnetic material by controlling the current flowing through the coil,
The control device includes:
The first permanent magnet coupled to the first pole piece on one end surface of the magnetic material in contact with the first pole piece when a magnetic material is held on the holding face of the first pole piece and the holding face of the second pole piece; By applying a current to the coil to form a pole, such as a pole of, by adding a magnetic flux to the magnetic body held on the holding surface of the first pole piece and the second pole piece to strengthen the holding of the magnetic body that
Magnetic material holding device characterized in that.

Images