STORAGE DEVICE FOR PERMANENT MAGNETS AND TRANSPORT METHOD

Description

[0001] The invention relates to a storage device for permanent magnets. A storage device according to the invention serves for the storage and transport of permanent magnets. The invention also relates to a method for transporting permanent magnets.

[0002] Storage is also referred to as "bridging time." Storage involves storing goods—in this case, permanent magnets—for a longer period of time. Stored goods, for example, are not needed until a later date and are therefore stored.

[0003] Following the production of permanent magnets, it is usually necessary to initially store them in a storage device so that the manufactured permanent magnets can be transported to a customer at a later time using the storage device. A storage device according to the invention is intended and suitable for this purpose.

[0004] Permanent magnets can be arranged in bars, held together by magnetic force. Such bars can be stored in a container. The container can be transported together with the permanent magnets inside, for example, to transport permanent magnets from a supplier to a customer. If several bars are to be stored in a container, a non-magnetic material can be placed between the individual bars to keep them spaced apart. This prevents the bars from colliding uncontrollably, which could result in damage.

[0005] If permanent magnets are to be separated again after transport, the magnetic forces that hold the permanent magnets together in a rod-like configuration must be overcome. With sufficiently strong magnetic forces, it can easily happen that a permanent magnet slips and collides with another permanent magnet. This can damage the permanent magnets, and an operator can be injured.

[0006] It is possible to hold individual permanent magnets on a steel sheet using magnetic forces, which can then be spaced apart from one another. A plurality of steel sheets with attached permanent magnets can be housed in a container to transport a large number of permanent magnets, for example, from a supplier to a customer. However, this requires a large volume. If a permanent magnet is removed, it can also slip out, collide with another permanent magnet, and be damaged.

[0007] There are devices with permanent magnets embedded in them. For example, WO 2017 / 063811 A1 describes an induction furnace with permanent magnets embedded in it. The permanent magnets are cylindrical and arranged in multiple layers.

[0008] From the publication WO 2018 / 204832 A1, a device for producing permanent magnet assemblies is known. A permanent magnet assembly comprises a plurality of permanent magnets arranged one behind the other and next to each other. Such an assembly can be used to be shipped from a supplier to a customer. The purpose of the device known from WO 2018 / 204832 A1 is therefore to produce permanent magnet assemblies. To achieve this, the device known from WO 2018 / 204832 A1 comprises a plurality of devices such as cartridges, a convergence device, and a holder along with a holder mold for permanent magnet assemblies.

[0009] From the document US 2007 / 0182517 A1 a hybrid magnetic structure with a non-magnetic base and at least two blocks of permanent magnet material is known.

[0010] The document US 2009 / 0293238 A1 discloses a device for coupling two objects together by means of magnetic force.

[0011] The publication CN 207417575 U discloses a packaging container for transporting strong permanent magnets. It features receiving grooves adapted to the permanent magnets, surrounded by a magnetic material, into which and from which the magnets can be inserted and removed from one side.

[0012] JP 2004 031399 A discloses a packaging for a permanent magnet consisting of cardboard and a cover. Packaging for permanent magnets is known from CN 206032233 U. JP 2003 115406 A teaches the provision of spacers between permanent magnets during transport. Devices with permanent magnets are known from KR 2018 0034794 A, US 2010 / 090555 A1, and DE 100 84 941 T1.

[0013] The invention aims to improve a bearing device for permanent magnets.

[0014] The object of the invention is achieved by a bearing device containing permanent magnets, which comprises the features of the first claim. The secondary claim relates to a bearing device for supporting permanent magnets. Advantageous embodiments emerge from the dependent claims. The object is also achieved by a method having the features of a further secondary claim.

[0015] The bearing device intended to solve the problem contains permanent magnets arranged side by side and / or one above the other. The bearing device has casings made of ferromagnetic material for the permanent magnets. Each casing comprises two openings that allow a permanent magnet to be inserted into the casing and / or removed from its casing.

[0016] The sheath, made of ferromagnetic material, guides the magnetic flux lines of a permanent magnet from one magnetic pole to the opposite magnetic pole. This ensures that only a small amount of magnetic flux escapes to the outside. This minimizes problematic interactions between permanent magnets. A permanent magnet can also be removed from the bearing device without being subjected to strong attractive forces by permanent magnets still in the bearing device.

[0017] A casing in the sense of the present invention extends around an inserted permanent magnet. A casing in the sense of the present invention extends from one pole to another of an inserted permanent magnet in such a way that the casing guides magnetic flux lines of a permanent magnet from one magnetic pole to the magnetic opposite pole.

[0018] The storage device according to the invention allows permanent magnets to be stored securely. Therefore, there is no risk of transport damage when the storage device with the permanent magnets stored therein is transported, for example, from a supplier to a customer. Permanent magnets can be removed individually with relative safety. Furthermore, a high packing density is possible, thus requiring a small transport volume.

[0019] In one embodiment of the invention, the shape of the casing's cross-section and the shape of the adjacent outer contour of the permanent magnet inserted therein are identical. For example, the outer contour of the storage device with the permanent magnets stored therein is transported, such as from a supplier to a customer. Permanent magnets can be removed individually with relative safety. Furthermore, a high packing density is possible, thus requiring a small transport volume.

[0020] The shape of the cross-section of the casing and the shape of the adjacent outer contour of the permanent magnet inserted within it are the same. For example, if the outer contour of an inserted permanent magnet adjacent to the casing is circular, the shape of the cross-section is also circular. For example, if the outer contour of an inserted permanent magnet adjacent to the casing is square, the shape of the cross-section is also square.

[0021] The shape of the outer contour of an inserted permanent magnet is slightly smaller than the cross-section of the casing. This creates a small amount of clearance between the inserted permanent magnet and its casing. This allows a permanent magnet to be inserted and removed from a casing without having to overcome high frictional forces. This small amount of clearance secures the position of the inserted permanent magnet and thus contributes to transport safety. It also enables high packing density.

[0022] A permanent magnet is located in a channel of a casing. The permanent magnet can be pushed through the channel. This means that the permanent magnet can enter the channel on one side and exit on the other. The casing then has two openings. This makes it easier to insert and remove a permanent magnet.

[0023] In one embodiment of the invention, a casing made of ferromagnetic material is spatially separated from another casing made of ferromagnetic material. Thus, there is a distance between the two casings. There may be an air gap between the two casings made of ferromagnetic material, which creates a spatial separation. A layer made of another material, in particular a non-ferromagnetic material, may be present between the two casings made of ferromagnetic material, which creates a spatial separation. Such a spatial separation can further improve the effect of minimizing interaction between two permanent magnets used.

[0024] In one embodiment of the invention, a casing made of ferromagnetic material is not spatially separated from another casing made of ferromagnetic material. Thus, there is no air gap between the two casings made of ferromagnetic material, which would cause a spatial separation. There is also no layer of another material, in particular a non-ferromagnetic material, between the two casings made of ferromagnetic material. This embodiment facilitates high packing density.

[0025] In one embodiment of the invention, a layer made of a non-ferromagnetic material is placed between two casings made of ferromagnetic material. Such a layer can further improve the effect of minimizing interaction between two permanent magnets.

[0026] In one embodiment of the invention, permanent magnets are arranged in two spatially separated casings made of ferromagnetic material, such that identical magnetic poles are adjacent to one another. In one embodiment of the invention, permanent magnets are arranged in two casings made of ferromagnetic material, between which a layer made of a non-ferromagnetic material is located, such that identical magnetic poles are adjacent to one another. This better ensures that stored permanent magnets maintain a certain distance. Transport damage can thus be better prevented.

[0027] In one embodiment of the invention, two casings made of ferromagnetic material form a common channel through which a permanent magnet can be pushed. This allows permanent magnets to be arranged one above the other and yet still be easily inserted and removed. If a layer of a different material is located between the two casings made of ferromagnetic material, this layer comprises a passage that then becomes part of the common channel. A permanent magnet can then be pushed into one side of the common channel and exit the common channel again on the other side.

[0028] In one embodiment of the invention, a cross-section of a channel in a casing is not aligned in the same way as the cross-section of an adjacent channel in a casing. This can provide manufacturing advantages for devices that are to be equipped with permanent magnets.

[0029] The invention also includes, in particular, a bearing device for permanent magnets, in which permanent magnets can be arranged side by side and one above the other in casings. The casings are made of ferromagnetic material. Each casing made of ferromagnetic material has a channel through which a permanent magnet can be pushed. At least two casings made of ferromagnetic material are spatially separated from each other. The channels of the two spatially separated casings form a common channel through which a permanent magnet can be pushed.

[0030] The invention also relates to a system comprising a storage device according to the invention and a receiving container. The storage device is adapted to the receiving container in such a way that the storage device can be placed on the receiving container in order to subsequently move permanent magnets from the storage device into the receiving container.

[0031] The receiving container can comprise a closing means which can close the receiving container after the permanent magnets have been moved into the receiving container in such a way that the permanent magnets are held in the receiving container without the storage device placed on the receiving container having to be removed for closing.

[0032] The closing means may comprise at least one slider, i.e. a closing means which can be moved back and forth between an open position and a closed position by sliding.

[0033] The system may comprise a tool having a plurality of plungers with which permanent magnets can be moved from the storage device into the receiving container when the storage device is placed on the receiving container.

[0034] The system is used to manufacture devices that include the receiving container.

[0035] The invention also relates to a method for transporting permanent magnets, in which a storage device according to the invention with the permanent magnets stored therein is loaded into a motor vehicle. The motor vehicle then travels to a destination. Upon reaching the destination, the storage device with the permanent magnets stored therein is unloaded from the motor vehicle. Following unloading, permanent magnets are removed from the storage device. Permanent magnets can thus be transported, for example, from a supplier to a customer. The customer can use the permanent magnets for their purposes after the customer has removed the permanent magnets from the storage device.

[0036] Permanent magnets can be easily transported over long distances. Distances of many kilometers are possible. Permanent magnets can be stored in the storage facility for several days or even weeks.

[0037] If a large number of permanent magnets are stored and transported, they generate a strong magnetic field in their vicinity unless appropriate shielding is provided during storage or transport. This can have a detrimental effect on pacemakers, for example. Furthermore, undesirable forces can occur during transport, potentially resulting in personal injury. The storage device serving as a transport container effectively prevents external magnetic fields that could compromise safety.

[0038] The invention is explained in more detail below using exemplary embodiments. Further advantageous embodiments of the invention can be seen from the exemplary embodiments. The scope of the claims is not limited to the exemplary embodiments.

[0039] The exemplary embodiments illustrate that a storage device according to the invention is configured such that permanent magnets can be stored by the storage device for long periods of time. The exemplary embodiments illustrate that a storage device according to the invention is configured such that permanent magnets can be introduced into the storage device. The exemplary embodiments illustrate that a storage device according to the invention is configured such that permanent magnets can be removed from the storage device. The exemplary embodiments illustrate that a storage device according to the invention is not configured such that its primary purpose is not storage. A device that comprises devices for fulfilling a different purpose is therefore not a storage device within the meaning of the present invention.

[0040] They show: Figure 1: Bearing device with permanent magnets arranged one above the other; Figure 2a: Bearing device made of Figure 1 without permanent magnets; Figure 2b: Section through the design of the Figure 2a ; Figure 3: Top view of the storage device from Figure 1 ; Figure 4: Section through a second embodiment of a storage device; Figure 5: Top view of the second embodiment of the Figure 4 ; Figure 6: Sectional view parallel to the plan view of Figure 5 ; Figure 7: Top view of a third embodiment of a storage device; Figure 8: Fourth embodiment of a storage device; Figure 9: Loading a storage device with permanent magnets; Figure 10: Loading a storage device with permanent magnets; Figure 11: Loading a storage device with permanent magnets; Figure 12: Loading a drum with permanent magnets; Figure 13: Top view of the storage device from Figure 12 .

[0041] The Figure 1shows a cross-sectional view of a bearing device 1 for permanent magnets 2, in which the permanent magnets 2 are arranged one above the other. For each permanent magnet 2, there is a casing 3 made of ferromagnetic material.

[0042] The sheaths 3, made of ferromagnetic material, are spatially separated from each other. Therefore, they do not touch each other. The spatial separation is achieved by layers 4 made of a non-ferromagnetic material.

[0043] The permanent magnets 2 are arranged in the bearing device 1 such that identical magnetic poles are adjacent to each other. The south pole of the uppermost permanent magnet 2 is therefore adjacent to the south pole of the permanent magnet 2 located below it. The south pole of the lowermost permanent magnet 2 is adjacent to the south pole of the permanent magnet 2 located above it. The north poles of the two middle permanent magnets 2 are adjacent to each other.

[0044] Rods 5 made of non-ferromagnetic material extend through the sheaths 3 and the layers 4, and are screwed at their ends with nuts 6 to firmly connect the sheaths 3 and the layers 4. It is sufficient if one end of a rod 5 is screwed with a nut 6. The other end can then have a head that is firmly connected to the rod 5.

[0045] In the Figure 1The case is shown in which four permanent magnets 2 are mounted one above the other. The bearing device can have a plurality of further casings 3, which are provided, for example, laterally and / or behind the casings 3. The number of permanent magnets 2 arranged one above the other can also be more than four or fewer than four. The ferromagnetic material can consist at least predominantly of iron, nickel, or cobalt. The ferromagnetic material can be an alloy that, for example, predominantly comprises iron, nickel, or cobalt. The ferromagnetic material is preferably made of steel, as this is very stable.

[0046] The non-ferromagnetic material can be a non-ferrous metal such as aluminum, copper, brass, lead, gold, silver, or magnesium. The non-ferromagnetic material can be stainless steel. The non-ferromagnetic material can be an alloy containing aluminum, copper, brass, lead, gold, silver, or magnesium. The non-ferromagnetic material can be wood, plastic, or ceramic. The non-ferromagnetic material can be a composite material made from the aforementioned non-ferromagnetic materials. The ferromagnetic and non-ferromagnetic materials can also be firmly bonded together in other ways, for example, by pins or adhesive.

[0047] The thickness of a casing 3 is preferably smaller than the depth of an adjacent permanent magnet 2. If, for example, the permanent magnet 2 has a diameter D, the thickness of an adjacent casing 3 is smaller than the diameter D. A greater thickness merely increases weight and volume without being able to further reduce adverse interactions to any significant extent.

[0048] The thickness of a casing 3 is preferably greater than 1 / 3 of the depth of an adjacent permanent magnet 2. If, for example, the permanent magnet 2 has a diameter D, the thickness of an adjacent casing 3 is then greater than 1 / 3 D. Such a minimum thickness has proven to be useful in order to achieve good results.

[0049] The permanent magnets can be rare earth magnets, such as neodymium-iron-boron magnets or samarium-cobalt magnets. The permanent magnets can be made of plastic with permanent magnetic properties, such as PANiCNQ. They can also be aluminum-nickel-cobalt magnets, such as N45SH magnets.

[0050] The Figure 2a shows the storage device 1 from Figure 1 without permanent magnets stored in it 2. The Figure 2aclarifies that each casing 3 formed from ferromagnetic material has a channel 7 as a bearing for the permanent magnets 2. Each permanent magnet 2 can be pushed through each channel 7. The layers 4 have passages 8 corresponding to the channels 7, through which the permanent magnets 2 can also be pushed. A common channel is formed by the channels 7 and passages 8. Each permanent magnet 2 can therefore be pushed in at one side, can be pushed through the jointly formed channel, for example, and can finally be pushed out of the bearing device 1 again at the other end. The pushing through can be done with a tool, for example with a plunger.

[0051] The two end openings of a common channel 7, 8 can each have a closure, for example in the form of a lid, to protect permanent magnets mounted in the storage device 1 from adverse external influences. However, such a closure can also be provided for an opening on only one side to form a stop when a permanent magnet 2 is pushed into the storage device 1. This can facilitate loading.

[0052] The Figure 2b shows a section through the design of the Figure 2a namely at the level of layer 4. The Figure 2b illustrates that a passage 8 is an opening in the layer 7, which is dimensioned such that a permanent magnet 2 can be pushed through the opening.

[0053] The Figure 3 shows a top view of the storage device 1 from Figure 1 . The Figure 3shows that the circular diameters of the channels 7 of the casings 3 are only slightly larger than the circular outer diameters of the permanent magnets 2. The shape of the cross-section of each casing 3 and the shape of the adjacent outer contour of the permanent magnet 2 inserted therein are therefore identical. Each permanent magnet 3 can therefore be inserted into a channel 7 without excessive friction losses. Figure 3 shows that the thickness of the casing 3 is smaller than the depth of the permanent magnet 2, but more than 1 / 3 of the depth. In case 3, the depth is the diameter of the permanent magnet 2 shown.

[0054] The Figure 4 shows a cross-sectional view of a second embodiment of a bearing device 1 for permanent magnets 2, in which the permanent magnets 2 are arranged one above the other. For each permanent magnet 2, there is a casing 3 made of ferromagnetic material.

[0055] The sheaths 3, made of ferromagnetic material, are spatially separated from each other. The spatial separation is achieved by layers 4 made of a non-ferromagnetic material.

[0056] The permanent magnets 2 are arranged in the bearing device 1 such that the same magnetic poles are adjacent to each other. Each north pole is located on the left side and each south pole is located on the right side. The permanent magnets 2 are thus aligned differently compared to the embodiment according to the Figures 1 to 3 .

[0057] The Figure 4 The sheaths 3 and layers 4 shown are firmly connected to each other by adhesive bonds, i.e. by a material bond.

[0058] The Figure 5 shows a plan view of the second embodiment of the Figure 4. The channels 7 and the permanent magnets 2, as seen in this plan view, have the same elongated shape so that each permanent magnet 2 can be inserted or pushed into a channel 7 of a casing 3 with little play. The shape of the cross section of each casing 3 and the shape of the adjacent outer contour of the permanent magnet 2 inserted therein are therefore the same. Figure 5 illustrates that the shapes of the permanent magnets 2 can be freely selected.

[0059] In the case of the Figure 5 a circular outer shape. This shape can also be different, for example, like permanent magnet 2, also elongated.

[0060] The Figure 6 shows a section parallel to the plan view from Figure 5at the level of a layer 4 made of a non-ferromagnetic material. The passage 8 of layer 4 has the same elongated shape as the channel 7 of Figure 5 , so that the Figure 5 shown permanent magnet 2 can also be pushed through the passage 8.

[0061] In the Figure 7 A plan view of a third embodiment of a bearing device 1 is shown. This embodiment shows permanent magnets 2 arranged side by side, which are held by the bearing device 1. The channels 7, viewed in plan view, are adapted to the shapes of the permanent magnets 2 so that the permanent magnets 2 can be pushed into the channels 7 with little play. Figure 7illustrates that many different shapes are possible. The cross-sectional shape of each casing and the shape of the adjacent outer contour of the permanent magnet inserted therein are identical. The shapes are such that the permanent magnets 2 can be moved along the channels 7 in a rotationally fixed manner.

[0062] The Figure 7 shows the case where a sheath 3 formed from ferromagnetic material is not spatially separated from another sheath 3 formed from ferromagnetic material.

[0063] In addition to the Figure 7 shown arrangement of permanent magnets 2, permanent magnets 2 can also be arranged analogously to the Figure 1 and 4 be accommodated one above the other in the storage device 1.

[0064] The Figure 8shows a fourth embodiment of a bearing device 1. This bearing device 1 illustrates the mounting of a total of eight permanent magnets 2, which are arranged side by side and one above the other. However, four of the eight permanent magnets 2 are not visible, as they are concealed by the lower casing 3.

[0065] The Figure 8 shows the case where four sheaths 3 made of ferromagnetic material are not spatially separated. The four non-spatially separated sheaths 3 are spatially separated from the other four sheaths 3 made of ferromagnetic material by layer 4.

[0066] The Figure 9illustrates the loading of the storage device 1 with permanent magnets 2, which are arranged one above the other. A first permanent magnet 2 has already been pushed into the storage device 1. A tube 9 made of a non-ferromagnetic material is placed on the storage device 1. The tube 9 is adapted to the cross-section of the permanent magnets 2, so that the permanent magnets 2 can be pushed through the tube 9 with little play. A permanent magnet 2 is inserted into the tube 9. With a plunger 10, the permanent magnet 2 inserted into the tube 9 is now moved downwards until the Figure 10 shown position is reached. Thus, the bearing device 1 can be loaded successively with permanent magnets 2 arranged one above the other.

[0067] It is also possible to insert a plurality of permanent magnets 2 into the tube 9 at once, in order to then move them all downwards into the bearing device 1. This is particularly possible if the permanent magnets are arranged in a tube in such a way that they repel each other. Due to reluctance force, the permanent magnets 2 will align themselves appropriately in the bearing device 1, as is the case, for example, in the Figure 1 is shown.

[0068] Fasteners may be provided to detachably connect the pipe 9 to the storage device. Fasteners can be used to fix the position of the pipe 9 relative to the storage device 1 to simplify loading. Mechanical fasteners are particularly used as fastening means.

[0069] The Figure 11 illustrates the loading of a storage device in which permanent magnets 2 can be stored next to each other and on top of each other. Figure 11In the case shown, three permanent magnets 2 can be arranged next to one another. Four permanent magnets 2 can be arranged one above the other. The bearing device 1 shown in section can therefore store a total of twelve permanent magnets 2. The first three permanent magnets 2 have already been pushed into the bearing device 1. These are located in the lowest position in the bearing device 1. A system consisting of three tubes 9 is placed on the bearing device 1. The tubes are made of a non-ferromagnetic material. Each tube 9 is adapted to the cross-section of the permanent magnets 2 so that the permanent magnets 2 can be pushed through each tube 9 with little play. Three permanent magnets 2 are inserted into the three tubes 9. With three plungers 10, the permanent magnets 2 inserted into the tubes 9 are now moved downwards until they are analogous to the Figure 10The position shown is reached. Thus, the storage device 1 can be loaded successively with permanent magnets 2, which are arranged both above and next to each other. So that the three plungers 10 can be pressed down together for loading, they are connected to each other, for example, by a rod 11.

[0070] With the help of plungers 10, permanent magnets 2 can be pushed downwards out of the storage device in order to remove them. In a storage device such as the one shown in the Figure 11 As shown, this can be done, for example, with only one plunger 10, as shown in the Figure 10 can be seen. In this way, a sequential removal of permanent magnets 2 is possible.

[0071] The Figure 12shows a cross-sectional view of a cylindrical bearing device 1 completely filled with permanent magnets 2. The permanent magnets 2 are mounted side by side and one above the other. Tappets 10 are placed on top of the permanent magnets 2 located there. The tappets 10 are connected to each other by a ring 12. The cylindrical bearing device 1 is placed on a drum 13 in such a way that the permanent magnets 2 can be pushed into chambers 14 of the drum 13. By pressing down the ring 12, the permanent magnets 2 are pushed completely into the chambers 14 of the drum 13. Subsequently, sliders 15 are pushed through slots 16. The sliders 15 are arranged in such a way that they prevent the permanent magnets 2 from moving out of the drum 13. There are gaps between the sliders 15 for the tappets 10.

[0072] Once the drum 13 has been completely loaded with the permanent magnets 2, the bearing device 1 is removed together with the rams 10. The drum 13 filled with the permanent magnets 2 can now be installed, for example, in an induction furnace.

[0073] Fastening means may be provided to releasably connect the drum 13 to the bearing device in order to avoid disturbances during loading.

[0074] The Figure 13 shows a top view of the storage device from the Figure 12The shape of the casing's cross-section, i.e., the cross-section of the channels 7, and the shape of the adjacent outer contour of the permanent magnet 2 inserted therein are identical. The permanent magnets 2 are inserted into their channels 7 with minimal clearance. A special feature is that, although they use identically shaped, square-sectioned permanent magnets 2, the channels, which are square in cross-section, are twisted relative to each other along a circular path, thus performing a type of rotation. Thus, a channel 7 is not aligned in the same way as a neighboring channel 7 in terms of its cross-section.

[0075] As can be seen from WO 2017 / 063811 A1, it may be advantageous to provide such a geometry of permanent magnets in devices. Such geometries can already be incorporated into the bearing device according to the invention in order to accelerate the production of devices such as those known, for example, from WO 2017 / 063811 A1.

Claims

1. Storage device (1) for storing permanent magnets (2) and for transporting permanent magnets to the customer for removal of the permanent magnets (2) by the customer, wherein permanent magnets (2) are contained in the storage device and are arranged side by side and / or one above the other, wherein there are sheathings (3) formed of ferromagnetic material for the permanent magnets (2), wherein each sheathing (3) formed of ferromagnetic material has two openings for placement of a permanent magnet (2) into the sheathing (3) and for removal of the permanent magnet (2) from the sheathing (3), wherein the shape of the cross-section of the sheathing (3) and the shape of the outer contour of the permanent magnet (2) placed therein adjacent thereto are the same, wherein the permanent magnet (2) is placed with play in the sheathing (3) and the sheathing forms a channel (7), through which the permanent magnet (2) can be pushed, so that the permanent magnet (2) can enter the channel (7) on one side of the channel (7) and can leave the channel (7) on the other side of the channel (7).

2. Storage device (1) according to claim 1, characterised in that at least one of the sheathings (3) formed from ferromagnetic material is spatially separated from another one of the sheathings (3) formed from ferromagnetic material and / or that at least one of the sheathings (3) formed from ferromagnetic material contacts another one of the sheathings (3) formed from ferromagnetic material.

3. Storage device (1) according to the preceding claim, characterised in that permanent magnets (2) are arranged in two of the sheathings (3) formed from ferromagnetic material, which are spatially separated from one another, in such a way that identical magnetic poles are arranged adjacent to one another.

4. Storage device (1) according to one of the preceding claims, characterised in that a non-ferromagnetic material (4) is located between two of the sheathings (3) formed from ferromagnetic material.

5. Storage device (1) according to the preceding claim, characterised in that a layer (4) is formed from the non-ferromagnetic material.

6. Storage device (1) according to one of the preceding claims, characterised in that two of the sheathings (3) formed from ferromagnetic material form a common channel through which a permanent magnet of the permanent magnets (2) can be pushed.

7. Storage device (1) according to one of the preceding claims, characterised in that the sheathings (3) formed from ferromagnetic material consist of steel.

8. System comprising a storage device (1) according to one of the preceding claims and a receiving container (13), wherein the storage device (1) is adapted to the receiving container (13) in such a way that the storage device (1) can be placed on the receiving container (13) in order to subsequently push permanent magnets (2) from the storage device (1) into the receiving container (13).

9. System according to the preceding claim, characterised in that the receiving container comprises a closing means (15) which can close the receiving container (13) after pushing the permanent magnets (2) into the receiving container (13) in such a way that the permanent magnets (2) are held in the receiving container (13) without the storage device (1) placed on the receiving container (13) having to be removed for the closing.

10. System according to the preceding claim, characterised in that the closing means comprises at least one slider (15).

11. System according to one of the three preceding claims, characterised in that it comprises a tool with a plurality of plungers (10), with which permanent magnets (2) can be pushed from the storage device (1) into the receiving container (13) when the storage device (1) is placed on the receiving container (13).

12. Method for transporting permanent magnets in which a storage device having the features of one of the preceding claims 1 to 7 is loaded into a motor vehicle together with the permanent magnets stored therein, the motor vehicle drives to a destination, the storage device with the permanent magnets stored therein is unloaded from the motor vehicle and, following the unloading, permanent magnets are removed from the storage device.